EP3057479A1

EP3057479A1 - System and method for preparing a beverage

Info

Publication number: EP3057479A1
Application number: EP14786199.1A
Authority: EP
Inventors: Günter EMPL; Marc KRÜGER
Original assignee: K Fee System GmbH
Current assignee: K Fee System GmbH
Priority date: 2013-10-18
Filing date: 2014-10-17
Publication date: 2016-08-24
Also published as: PH12016500583A1; AU2014336060A1; US20160242594A1; JP2017500067A; WO2015055849A1; MX2016004840A; DOP2016000081A; CN105636488A; SG11201602451TA; IL244805A0; KR20160073401A; RU2016119043A; CA2927665A1

Abstract

The invention relates to a system for preparing a beverage, comprising a portion capsule which is filled with a raw beverage material, and a brewing device which comprises a brewing chamber for receiving the portion capsule and for extracting the beverage from the portion capsule by means of an extraction liquid. Said portion capsule comprises a product identifier and said brewing device comprises an identifier detector for identifying the identification of the portion capsule.

Description

DESCRIPTION Title System and procedure for preparing a drink

State of the art

The present invention relates to a system for preparing a beverage comprising a portion capsule containing a beverage raw material, and a brewing device comprising a brewing chamber for receiving the portion capsule and for extracting the beverage from the portion capsule by means of hot water.

Such a system is known, for example, from the publication DE 10 201 1 01 1 204 A1. The system comprises a portion capsule and a brewing device with a brewing chamber for extracting and / or releasing a substance provided in the portion capsule, the brewing chamber having a first brewing chamber element and a second brewing chamber element and the first brewing chamber element between a loading position, in which the first and the second Brühkammerelement are spaced from each other, and an extraction position in which the first and the second Brühkammerelement to form a substantially closed brewing chamber are approximated, movable and each Brühkammerelement each having a perforating agent, said with the first perforating the capsule lid and the second perforating the bottom portion of the portion capsule is pierceable. The portion capsule is specially adapted to the brewing device to always ensure a trouble-free and reliable brewing process and a high quality of the beverage to be produced.

The popularity of such portion capsule brewing systems has grown steadily in recent years, so that now a variety of different portion capsule systems can be found on the market. The portion capsule and the brewing chamber machines of the respective

Externally, systems often differ only slightly from each other, although the internal structure and the respective properties of the portion capsules sometimes differ greatly. Disadvantageously, therefore, there is a risk for the consumer that he accidentally wants to use portion capsules of a portion capsule system in a brewing device of another portion capsule system for producing a drink, which can cause significant damage to the brewing device or even a health risk to the user. It is conceivable, for example, that the Perforating a brewing unit, which are normally provided only for piercing a thin sealing film of the appropriate portion capsule, bend or even break when operated with a non-system portion capsule, which has a rigid and stable distribution or filter element immediately below the sealing film. It would also be conceivable that the pressure conditions in the brewing chamber develop in an unpredictable manner through the use of a portion of non-system capsule and lead to bursting of the portion capsule or even the entire brewing chamber, whereby the user is at risk of burns and the like. There is also the danger that the brewing chamber can no longer be closed tightly, as a result of which hot extraction liquid spouts out of the device when the brewing chamber brews.

From the prior art, for example, the unpublished document DE 10 2012 105 787 A1, therefore, systems for preparing drinks are known in which the portion capsule is provided with a special identifier and the associated Portion on capsule machine an identifier for detecting this special Identifier. Based on the identifier can be checked in terms of functionality and longevity of Portionskapselmaschine and to increase the safety of the user before each brewing process, whether the inserted portion capsule is known or suitable for brewing with the portion capsule machine.

A disadvantage of this solution is that for each portion capsule a special code has to be developed, stored, documented and processed.

Disclosure of the invention

It was therefore an object of the present invention to provide a system for preparing a beverage using portion capsules, in which the operation of the brewing device with non-system portion capsules is suppressed without the need for elaborate implementation of a separate code system.

The object is achieved with a system for preparing a beverage, which has a portion capsule, which is filled with a beverage raw material, and a brewing device, which comprises a brewing chamber for receiving the portion capsule and for extracting the beverage from the portion capsule by means of extraction liquid, said Portionskapsei has a product identification identifier and the brewing device has a recognition detector for identifying the identifier of the portion capsule. The inventive system allows using the product identification identifier advantageously a check of the portion capsule before the start of the brewing device to the effect whether the portion caplet concerned is an approved and known, ie native portion capsule, of which no danger to the brewing device or the User goes out. It is conceivable, for example, that the brewing chamber can not close or that the portion capsule simply falls through the brewing chamber or that the brewing process can only be started in a non-hazardous mode or if the portion capsule can not be clearly identified on the basis of its product identification code. In this way it is prevented that the brewing device is operated with a non-system portion capsule. The risk of damage to the

Brewing device or the risk to persons due to the commissioning of the brewing device with such non-portional capsules is advantageously completely eliminated, without requiring increased attention of the consumer would be required. The portion capsule is checked on the basis of the product identification code so that no additional code system has to be introduced. Any food product is in any case provided with a unique and non-confusable product identification identifier, which clearly assigns the product to a specific manufacturer. On the basis of this product identification code, stocks are usually checked in the food trade, transport routes are documented, guarantees of origin are kept or food products are read in at the cash machine. The basic idea of the present invention is to use this already existing and unique code for testing in the brewing device in order to decide whether the brewing device with the inserted portion capsule is compatible and thus the brewing process can be initiated safely. The product identification code comprises in particular the so-called product identification number, in particular a Universal Product Code (UPC), a European Article

Number (EAN), a GS1 code, a Global Trade Item Number (GTIN) or the like. In this way, no new code system needs to be introduced for this purpose. In particular, the product identification tag runs under the GS1 standard. The term extraction of the beverage in the context of the present invention comprises in particular the introduction of brewing liquid into the portion capsule. The beverage raw material located within the portion capsule can be dissolved, brewed and / or dissolved out of the beverage raw material or separated from the beverage raw material. In particular, beverages from all common types of beverage raw materials, such as granulated coffee roasted beans, sliced tea leaves or instant powder, for example instant coffee, instant chocolate or instant milk, can be produced. It is also conceivable that the beverage raw material is a combination from soluble and separable substances such as instant coffee and coffee beans. The beverage raw material may as well comprise a base material, in particular instant material for the production of cold drinks. Advantageous embodiments and modifications of the invention are the dependent claims and the description with reference to the drawings.

According to a preferred embodiment of the present invention, it is provided that the product identification code is embedded in a barcode, an RFID code, a QR code, a data matrix code or the like. Advantageously, thus an automatic readout of the product identification identifier is possible. The identification detector comprises, in particular, an optical sensor, such as a camera, for example, which automatically reads the bar code or QR code or the data matrix code when the portion capsule is arranged inside the brewing device. Alternatively, the identification detector comprises a transmitting and receiving antenna for automatically reading the RFID codes. Alternatively, it would be conceivable that the product identification code is embedded in other automatically readable computer chips. For the purposes of the present invention, the term QR code encompasses in particular any data matrix code. In this respect, the term QR code and data matrix code are used synonymously below. Alternatively or additionally, it would also be conceivable for the product identification identifier to comprise a bar code, a point code, a binary code, a Morse code, Braille character code (Braille) or the like. The code can also be embedded in a three-dimensional structure, such as a relief.

According to a preferred embodiment of the present invention, it is provided that the brewing device comprises a control unit which initiates or continues extraction only if the identifier detector detects a known product identification code. In particular, brewing liquid is only introduced for extracting the beverage raw material if the identification detector detects a known product identification code. It is conceivable for the brewing program to be started automatically or continued when the product identification code is recognized. The brewing device preferably comprises a memory in which all product identification identifiers of all compatible portion capsules are stored, so that only a comparison has to be made by means of a control device as to whether the product identification code read in by means of the identification detector is included in the list of the stored (or known) Production identification tags is present. Otherwise, the initiation of the brewing process is prevented for safety reasons It would also be conceivable that after inserting the extraction process is first started in a safe mode, for example, with lower pressure or temperature, in which no damage to the machine or endangering the user even with non-system capsule and, upon detection of the portion capsule, the "appropriate extraction operation", ie, with the required pressure or temperature, is initiated If the product identification tag is not recognized, the machine remains in "safe mode" or shuts down for safety.

According to a further preferred embodiment, it is provided that the brewing device comprises a control unit which starts a specific brewing program as a function of the product identification code detected by the identification detector. In an advantageous manner, the brewing program suitable for the beverage raw material is thus automatically selected. The various brewing programs preferably differ in terms of temperature, pressure, delivery rate, delivery time and / or delivery pauses when introducing the brewing liquid into the portion capsule.

According to a further preferred embodiment, it is provided that the brewing device comprises a control unit which initiates an alternative process (also referred to as secure mode) when the identifier detector detects an unknown product identification code. If the product identification tag is not recognized, it must be assumed that the current portion capsule is a non-system portion capsule designed for a different type of brewing device. It has been shown in the past that the brewing device can be damaged by use with such non-system portion capsule and / or a proper and harmless to the consumer brewing process can not be guaranteed. In some cases, the use of non-system portion capsules, for example, means that the brewing chamber does not close watertight during the extraction process, the portion capsule is incorrectly pierced and / or the capsule bursts in the brewing chamber. This creates considerable risk of injury to the consumer, for example due to scalding. Advantageously, therefore, a precautionary alternative process is performed, which carries a lower risk of injury to the consumer if the product identification recognition is not recognized. The alternative process preferably comprises a capsule ejecting process, a cleaning process, a brewing program with a reduced amount of brewing water, reduced brewing pressure and / or reduced brewing water temperature. By using lower pressures, temperatures and / or amounts of water, the risk of scalding the consumer in a leaking brewing chamber or when bursting the brewing chamber is reduced. This can also be achieved by performing the already programmed-in cleaning process. Alternatively, the portion capsule is ejected directly.

According to a preferred embodiment of the present invention, it is provided that the system has a sales packaging in which the portion capsule is arranged prior to insertion into the brewing device, wherein the sales packaging is provided with the same product identification identifier. Advantageously, the same code is used for the arranged on the portion capsule product identification code, which is already arranged on the sales packaging anyway and allows a clear assignment of the portion capsule. The product identification code arranged on the sales packaging serves, in particular, for identifying and tracking the portion capsule arranged in the sales packaging during the transport, storage and / or sale of the portion capsule.

A further subject of the present invention is a portion capsule for the system according to the invention, wherein the portion capsule has a frusto-conical base element with a cavity for receiving the beverage raw material and a capsule lid closing the cavity, wherein the product identification recognition in the region of the capsule lid and / or in the region of a capsule flange and / or is arranged on the base element. Advantageously, in the area of the capsule lid or the capsule flange, the product identification code and in particular the QR code or the data matrix code, which represents the product identification code, can be arranged in a particularly simple and cost-effective manner. Furthermore, this area is also comparatively easy to read from the identification detector in a closed brewing chamber.

According to a preferred embodiment of the present invention, it is provided that the product identification code is embedded in a QR code and wherein a plurality of the QR codes are arranged in the circumferential direction one behind the other on a circular path on the capsule cover. The portion capsule is rotationally symmetrical about its longitudinal axis, whereby the orientation of the portion capsule is not precisely defined in the brewing chamber and will be different during each brewing process. By arranging the plurality of identical QR codes on the circular path can still be ensured that always at least one QR code is in the field of view of the identification detector. Preferably, the QR codes are in the region of a circular path with a radius between 40 and 100 percent preferably between 50 and 80 percent and preferably between 55 and 65 percent of the total radius of the capsule lid. The mean diameter of the circular ring of QR codes is preferably between 15 and 35 millimeters, more preferably between 20 and 30 millimeters and particularly preferably at substantially 26 millimeters. Alternatively, it is provided that the QR codes in the region of a circular path with a radius between 20 and 100 percent, preferably between 30 and 60 percent, more preferably between 40 and 60 percent and most preferably between 45 and 55 percent of the total radius of the capsule lid are. The mean diameter of the circular ring of QR codes is preferably between 10 and 20 millimeters, more preferably between 12 and 15 millimeters, and particularly preferably at substantially 13.5 millimeters. Each QR code is preferably square, the edge length preferably being between 1 and 5 millimeters, more preferably between 1, 5 and 2, 1 millimeters and more preferably at substantially 1, 8 millimeters. In this area, the multiplicity of identical QR codes can advantageously be realized in a size which can still be detected comparatively easily by the identifier detector. The distance between two adjacent QR codes along the circular ring 1, 5 is preferably between 1 and 2 millimeters, more preferably between 1, 2 and 1, 8 millimeters and particularly preferably at substantially 1, 5 millimeters. Advantageously, sufficient space remains in the center of the capsule lid so that when extracting the portion capsule the perforating means can perforate the capsule lid and the extraction liquid can be directed into the interior of the portion capsule. The field of view of the identification detector has a width preferably between 3 and 6 millimeters, more preferably between 4 and 5 millimeters and particularly preferably of substantially 4.5 millimeters. The field of view of the identification detector further has a length preferably between 7 and 11 millimeters, more preferably between 8 and 10 millimeters, and most preferably substantially 9 millimeters.

According to a preferred embodiment of the present invention, it is provided that each QR code has a maximum first extent in the circumferential direction and in each case a distance is provided between two adjacent QR code, wherein the distance is smaller, equal to or greater than the first extent ,

According to a preferred embodiment of the present invention, it is provided that the portion capsule comprises at least one carrier foil and a transparent lid foil, wherein the QR codes are arranged between the carrier foil and the lid foil and are printed in particular on the back side of the surface foil. In an advantageous way the QR code is thus protected against scratching by the cover film. In this case, the carrier foil preferably faces the base element, while the lid foil faces away from the base element. According to a preferred embodiment of the present invention, it is provided that the QR code is printed with an ultraviolet light reflecting ink. It is conceivable that the QR code is printed with an ink that is visually less visible to the human eye in daylight than under artificial UV light. Advantageously, the external appearance of the portion capsule, on the lid of which the brand or the respective type of beverage is typically printed in an optically appealing manner, is not or only insignificantly impaired by the plurality of QR codes.

According to a preferred embodiment of the present invention, it is provided that the base element has a peripheral flange, on which the capsule lid is attached, wherein on a side facing away from the capsule bottom of the flange, the plurality of QR code is arranged in the circumferential direction one behind the other on a circular path. During the brewing process, the flange between the closure element and the receiving element is firmly clamped, so that a reliable reading is advantageously favored. Alternatively, it is conceivable that the QR code or the plurality of QR codes is arranged on the outside of the capsule bottom or on the outside of the wall of the base element.

Another object of the present invention is a brewing device for the inventive system or for use with the portion capsule according to the invention, wherein the brewing device comprises a receiving element with a receptacle for the portion capsule and a closure element, wherein the closure element between a loading position in which the receiving element and the Closing element are spaced from each other, and an extraction position in which the receiving element and the closure element for forming a substantially closed brewing chamber are approached, is movable, preferably the receiving element, a housing of the brewing device or the closure element comprises the identification detector. The closure element is in particular pressed against the capsule lid in the extraction position, so that a product identification code arranged on the capsule lid and in particular the QR code representing the product identification identifier can be read out particularly easily and reliably by the identifier detector. According to a preferred embodiment of the present invention, it is provided that the closure element has an opening on a side facing the receiving element, wherein the identification detector is arranged in the region of the opening within the closure element, wherein the opening is preferably closed by a transparent window. The identification detector can advantageously detect a product identification code arranged on the portion capsule through the opening. The opening is preferably closed by a transparent window, for example in the form of a transparent film or a transparent glass, so that the identification detector itself advantageously does not engage in Contact with pressurized, hot brewing liquid passes. Alternatively, it would also be conceivable that the receiving element has the opening and the transparent window. Optionally, the identification detector in the chute, the bell or a non-movable element of the brewing chamber is arranged. According to a preferred embodiment of the present invention, it is provided that the closure element has a receiving element facing substantially round contact surface for contact with the capsule lid in the extraction position, wherein a detection surface of the identification detector and / or the opening is formed in the contact surface. Preferably, the detection surface and / or the opening is arranged in a range between 50 and 100 percent, preferably between 55 and 80 percent, particularly preferably between 60 and 70 percent of the total radius of the contact surface. Preferably, the detection surface or the opening thus lies in the region of the product identification code arranged on the capsule lid. In particular, the opening is arranged in a range between 20 and 100 percent, preferably between 30 and 70 percent, more preferably between 40 and 60 percent and most preferably between 45 and 55 percent of the total radius of the contact surface.

According to a preferred embodiment of the present invention it is provided that the detection surface and / or the opening has a second extension in the circumferential direction of the contact surface, which is larger in the circumferential direction than the first extension. Advantageously, a complete product identification code and in particular a complete QR code can thus be detected by the identifier detector. Preferably, the second extent in the circumferential direction is equal to or greater than the sum of the first extent and the distance. Advantageously, therefore, each area of the QR code is necessarily detectable by the identifier detector, regardless of how the portion capsule is randomly oriented. In this configuration, however, the product identification code may need to be composed of two different QR codes, for example, if the distance between the QR code is centered in front of the detection area and / or the opening and only one on either side of the distance Part adjacent QR code for the identifier detector is detectable. Alternatively, it is conceivable that the second extent in the circumferential direction is equal to or greater than the sum of twice the first extent and the distance or the sum of the first extent and twice the distance. With this configuration, it is ensured that a QR code is always located completely in front of the detection surface or the opening, regardless of how the portion capsule is randomly oriented. Advantageously, the QR code does not have to be assembled fragmentarily from two QR code parts to be detected. According to a preferred embodiment, the opening or the detection surface is formed annularly on the contact surface. It is conceivable that the detector is designed in the manner of a ring camera or rotates about the longitudinal axis of the brewing chamber along the annular opening or detection surface. The portion capsule optionally has only a single QR code on the annulus in this embodiment.

According to a preferred embodiment of the present invention, it is provided that the closure element has a radiation source and in particular a light source for emitting visual and / or ultraviolet light in the direction of the portion capsule. Advantageously, the product identification code and in particular the QR code are illuminated by the light source, so that a reading of the identifier by means of the identifier detector is made possible with the brewing chamber closed. The identifier detector is preferably designed for reading out of the portion capsule reflected signals in the visual and / or ultraviolet wavelength range. It is conceivable that the identification detector comprises, for example, a CCD camera which is sensitive in the wavelength range of visual and / or ultraviolet light.

According to a preferred embodiment of the present invention, it is provided that the brewing device has an evaluation electronics, which is coupled to the identification detector and is provided for determining the product identification code by analyzing the detected QR code. The evaluation electronics preferably determine the GS code from the QR code, which permits unambiguous identification of the product or portion capsule arranged in the brewing chamber. The brewing device preferably further comprises a comparison unit provided for comparing the determined product identification identifier with a list of prestored product identification identifiers. Alternatively, it is conceivable that the brewing device an algorithm detection has, which detects by means of an algorithm, whether the detected QR code system-related (that is, known) or foreign to the system. The algorithm works according to the known cryptographic encryption / decryption methods. According to a further preferred embodiment of the present invention, it is provided that product-relevant information, such as the expiration date of the beverage substance, is embedded in the product identification code and in particular in the QR code. The detection detector reads out the product-relevant information during the detection of the product identification code and, depending on the product-relevant information, continues or terminates the brewing process, possibly with changed brewing parameters. In this way, it can be prevented, for example, that a beverage with a serving date already exceeded the best before date portion capsule is scalded, so that health risks are avoided when consumed. This is especially important for milk-based products.

It is conceivable that the identified GS1 code is compared with a list of prestored GS1 codes which are stored on a memory module of the comparison unit and, if it is identical to a prestored GS1 code, a brewing process is started. Preferably, each GS1 code pre-stored on the memory module is linked to at least one special brewing parameter which is used in the started brewing process. For example, the amount of water, the water temperature, the brewing pressure and / or an intermediate exposure period are taken as brewing parameters from the list and applied accordingly during brewing with the associated portion capsule.

A further subject of the present invention is a method for handling a portion capsule, wherein in a first method step at least one portion capsule and a sales package are provided with the same product identification code, wherein in a second method step the sales package is filled with the at least one portion capsule, wherein in one is stored, transported and / or sold in a third process step the filled sales packaging and wherein in a fourth process step the portion capsule removed from a consumer from the sales packaging, inserted into a brewing device and for extracting a beverage from the portion capsule, the brewing device is started, characterized in that in the third process step, the product identification code located on the sales packaging is read out and evaluated in order to release the portion capsule and / or the manufacturer of the portion capsule to identify ogistischen purposes, and whereby in the fifth procedural step the product identification code located on the portion capsule is read out by an identification detector of the brewing device and evaluated in order to check the compatibility of the portion capsule with the brewing device. According to a preferred embodiment of the present invention, it is provided that in the first method step, the at least one portion capsule and the sales packaging are provided with a product identification code in the form of a GS1 code.

According to a preferred embodiment of the present invention, it is provided that in the first method step, a bar code, an RFID code, a QR code, a bar code, a point code, a binary code, a Morse code, a Braille character code or a data matrix code, in which the product identification code is embedded, onto which the portion capsule and the sales packaging are printed. A further subject of the present invention is a method for operating a system according to the invention, wherein in a first operating step the portion capsule according to the invention is inserted into the brewing device according to the invention, wherein in a second operating step the brewing device is transferred from the loading position to the extraction position, wherein in a third operating step the QR code arranged on the portion capsule is read out by the identification detector, wherein in a fourth operating step the product identification code is first determined from the QR code and then the extraction process is initiated in a fifth operating step, if the product identification code can be identified, or in one Fifth operating step of the extraction process is first initiated and in a subsequent fourth process step, the product identification identifier from the QR code is determined and the extraction process is carried out or performed according to a particular brewing program, if the product identification identifier is identifiable.

Advantageously, the product identification code, ie the QR code, is only then read out by means of the identifier detector after the brewing chamber has been transferred to the extraction position, ie has been closed. This has the advantage that the position of the portion capsule is fixed and well-defined relative to the identification detector, whereby a reliable and error-free detection process can be achieved. Furthermore, impairment of the code recognition is avoided in that no scattered light can penetrate from the outside into the closed brewing chamber. In the second alternative, the brewing process is initiated before the QR code is read and determined. This has the advantage that nern the portion capsule already builds up an overpressure by inflowing extraction liquid, whereby the closure element nestles flat against the identification detector. It is conceivable that before the QR code is read out, the brewing process is carried out only in safe mode, ie with lower temperature and / or lower brewing pressure, in order to reduce the risk to the user and the machine. Nevertheless, an error-free reading is favored here. If the QR code is recognized, the extraction process is maintained, or continued, especially with the proper brewing parameters appropriate and / or appropriate for the capsule. It is also conceivable that in the fifth method step, the brewing process is converted according to the detected product into a brewing program suitable for the identified portion capsule. If the QR code is not detected, the brewing process is aborted or the alternative process (also referred to as safe mode), which includes a cleaning operation, a brewing program with reduced brewing water quantity, reduced brewing pressure and / or reduced brewing water temperature, is started. The portion capsule is treated, for example, like a cleaning capsule, ie the brewing parameters of the extraction process are set to a cleaning capsule. For example, cold or colder water is used than in a beverage brewing process. It is also conceivable that the brewing device operates in safe mode, for example with a lower brewing pressure, so that a bursting of a non-system capsule when used with pump pressures of 19 bar, which can supply the machine is prevented and there is no danger to the user.

According to a preferred embodiment of the present invention, it is provided that in the fifth operating step, an extraction process with brewing parameters is initiated or continued, wherein preferably at least one brewing parameter is selected as a function of the identified product identification code. Advantageously, a brewing process can be automatically initiated due to the identification of the portion capsule, which is specially tuned for brewing the arranged in the portion capsule beverage raw material. For example, the amount of water, the water temperature, the brewing pressure and / or an intermediate exposure time period are recognized as brewing parameters on the basis of the product identification code and applied to the associated extraction process.

According to a preferred embodiment of the present invention, it is provided that in the third operating step, the QR code is illuminated by a light source arranged on the closure element, in particular with visual and / or ultraviolet light, and light beams reflected by the QR code are detected by the identification detector. According to a preferred embodiment of the present invention, it is provided that in the fifth operating step the product identification code is compared with a list of prestored product identification codes.

According to a preferred embodiment of the present invention, it is provided that in the fifth operating step the brewing device is automatically moved back to the loading position without extraction process or after termination of the extraction process, if the product identification code is not identified and, in particular, can not be found on the list of pre-stored product identification codes.

Another object of the present invention is a method for producing the portion capsule according to the invention, wherein in a first manufacturing step, a transparent lid film is provided, wherein in a second manufacturing step, the QR code is printed on a back of the lid film, wherein a third manufacturing step, the back of the Cover film is connected to a barrier film and wherein in a fourth manufacturing step, the composite of cover film and barrier film is mounted on the base member. Preferably, the composite is glued and / or sealed to a circumferential flange of the base member. On the one hand, the QR code can be detected by the identification detector through the transparent cover film and, on the other hand, it is protected by the transparent cover film. The barrier film advantageously ensures that the QR code and the cover film do not come into contact with the beverage raw material and thus preferably do not have to be formed food safe. The production process enables a quick, simple and inexpensive production of the portion capsule according to the invention.

According to a preferred embodiment of the present invention, it is provided that in the second production step, after the printing of the QR code, an inscription and / or graphic is printed on the back side of the cover film. Advantageously, in the same manufacturing step for generating the QR code, a visually appealing brand or ornament or the respective type of beverage can be printed. The QR code is preferably printed with an ink which is visually imperceptible and only becomes visible by illumination with ultraviolet light. The outer design of the capsule lid is thus not affected by the majority of the QR code.

According to a preferred embodiment of the present invention, it is provided that in a fifth before, after or during the third production step Production step, the barrier film on a side facing away from the lid film side is connected to a carrier film. In the fourth manufacturing step, the capsule lid is connected to the base element in such a way that the rear side of the barrier film is glued or sealed onto the flange.

Further details, features and advantages of the invention will become apparent from the drawings and from the following description of preferred embodiments with reference to the drawings. The drawings illustrate only exemplary embodiments of the invention, which do not limit the essential inventive idea.

Brief description of the figures

Figures 1 a to 1 e show schematic sectional views of a system and a

A method of making a beverage according to an exemplary embodiment of the present invention.

Figures 2a and 2b are schematic perspective views of the portion capsule of the system according to the exemplary embodiment of the present invention.

FIG. 3 shows a sales package for the portion capsule of the system according to the exemplary embodiment of the present invention.

Figures 4a and 4b show schematic views of a portion capsule according to an exemplary embodiment of the invention.

Figures 5a and 5b show detail views of a brewing device of a system according to an exemplary embodiment of the present invention. FIG. 6 shows a schematic partial view of a portion capsule according to an exemplary embodiment of the invention.

Embodiments of the invention

In the various figures, the same parts are always with the same reference numerals and are therefore usually named or mentioned only once in each case. FIGS. 1 a to 1 e show schematic sectional views of a system 1 and a method for producing a beverage according to an exemplary embodiment of the present invention. The system 1 comprises a brewing device 5 and a portion capsule 2. The brewing device 5 comprises a receiving element 4 formed as a bell element and a closure element 3. The closure element 3 is relative to the receiving element 4 along an axial direction 6 between one in FIGS 1 b illustrated loading position 10 and an illustrated in Figure 1 d extraction position 1 1 movable. The portion capsule 2 comprises a truncated cone 31 made of plastic and cup-shaped. The truncated cone 31 is closed airtight by means of a capsule lid 25 made of plastic or aluminum foil. Within the portion capsule 2 is a beverage substance, in particular a roasted coffee powder extractable by means of an extracting liquid. Optionally, the portion capsule 2 has an unillustrated filter element, which is arranged between the capsule bottom 29 and the beverage substance. The capsule lid 25 is glued or welded in the region of a capsule flange 27 with the truncated cone 31.

The closure element 3 has a plurality of first perforation means 18 on an end face 8 facing the receiving element 4. The first perforation means 18 each comprise a perforation tip, which protrude in the direction of the receiving element 4 from the end face 8. Furthermore, 8 water outlet openings are formed in the end face (for reasons of perspective in Figures 1 a to 1 e not visible). The closure element 3 further has a water supply channel 32, which is provided for supplying extraction liquid to the water outlet openings. The closure element 3 has two lateral retaining sleeves 34, whose free ends are facing each other and the capsule flange 27 laterally. The receiving element 4 has a second perforation means 19, which comprises a pointing in the direction of the closure element 3 Aufstechspitze, which is disposed within the cavity. The piercing tip is provided with lateral grooves 33, which extend parallel to the axial direction 6. In the region of the piercing tip, the receiving element 4 has a recess 23 in the bottom region 22 of the cavity, into which a drainage channel 24 opens.

In Figure 1 a, the closure element 3 is illustrated in the loading position 10, that is, the closure element 3 is spaced along the axial direction 6 of the receiving element 4. In this starting position, the portion capsule 2 is now introduced along a loading direction 26 by an unillustrated user into an insertion chute 42, so that the portion capsule 2 falls under gravity into an intermediate region between the closure element 3 and the receiving element 4.

FIG. 1 b illustrates that the portion capsule 2 abuts a capsule stop 12 in the intermediate region and rests there. At the same time, tilting of the portion capsule 2 in the direction of the receiving element 4 is prevented by the lateral retaining sleeves 34 by the capsule flange 27 is supported in the direction of the receiving element 4 on the retaining sleeve 34 so that the portion capsule 2 is aligned substantially axially along the axial direction 6 ,

In the next step, illustrated with reference to FIG. 1 c, the closure element 3 is driven via a toggle lever joint 28 to a linear displacement along the axial direction 6 in the direction of the receiving element 4. As a result of the movement of the closure element 3 in the direction of the receiving element 4, the portion capsule 2 is introduced into the cavity of the receiving element 4.

In Figure 1 d, the closure element 3 is displaced to the receiving element 4 along the axial direction 6 in the extraction position 1 1, so that the portion capsule 2 is almost completely inserted into the cavity of the hollow bell element. The capsule lid 25 has been perforated by the first perforating means 18 designed as perforation tips, while the capsule bottom 29 has been perforated by the second perforating means 19 designed as a piercing spike. Closure element 3 and the receiving element 4 now form a hermetically closed brewing chamber 1 ', in which the portion capsule 2 is arranged. The capsule flange 27 is firmly clamped between the closure element 3 and the receiving element 4, in particular by means of an elastic sealing ring 36. The capsule stopper 12 is arranged below the receiving element 4.

The brewing device 5 has an identification detector 50 in the form of a rotating optical camera. The camera is designed to read out a data matrix code or QR code 60 or bar code 61 arranged on the wall of the portion capsule 2. Such a portion capsule 2 is shown for example in Figures 2a and 2c. A product identification code, in particular a product identification number in the form of a GS1 code, is embedded in the data matrix code or QR code 60 or bar code 61. With the identification detector 50, the product identification code is read out and compared with a list of product identification identifiers pre-stored in the brewing device 5. If the detected product identifier is identified with a prestored product product identification number, it is assumed that it is a native portion capsule 2, which can be safely extracted by means of the brewing device 5. It is then closed a control circuit which allows switching on a pump (not shown) for conveying extraction liquid, whereby the brewing chamber 1 ', the extraction liquid is supplied in the form of pressurized and heated water.

The extraction liquid is thereby conveyed by means of the pump through the water supply channel 32 to the water outlet openings and from there through the perforation openings 18 produced in the capsule cover 25 by means of the first perforation means 18 into the portion capsule 2. The beverage substance is flowed through by the extraction liquid, so that a beverage extract is formed which again leaves the portion capsule 2 through the perforation hole produced in the capsule bottom 29 by means of the piercing spike and then passes into the outlet channel 24. By means of the drainage channel 24, the beverage extract is preferably fed directly to a non-pictured drinking vessel, such as a coffee cup.

After the extraction process, the closure element 3, as illustrated in Figure 1 e, moves from the extraction position 1 1 back towards the loading position 10. The extracted portion capsule 2 is pulled out of the cavity of the receiving element 4 again by means of the retaining sleeves 34 and transported in the direction of the loading position 10. Due to the retraction of the closure element 3, the capsule flange 27 abuts a stop surface of a capsule ejector facing the receiving element 4. As a result, the spent portion capsule 2 falls under gravity into a collecting container (not shown) arranged below the intermediate region. Subsequently, the closure element 3 is again in the loading position 10, so that a new filling of the brewing device 5 with an unused portion capsule 2 according to Figure 1 a is possible.

If the product identification number does not match a pre-stored product identification number, the control circuit remains interrupted so that the pump can not be switched on and extraction of the non-system portion capsule is prevented. It is conceivable that a corresponding visual or acoustic error signal is generated which signals the incompatibility of the portion capsule 2 used to the user of the system. Alternatively, it would also be conceivable that the brewing chamber 1 'is opened by an automatic retraction of the closure element 3 and the non-system portion capsule 2 is thereby automatically ejected into the collecting container. It would also be conceivable that after inserting the extraction process is first started in a safe mode, for example, at lower pressure or temperature, in which no damage to the machine or endangerment of the user is given even in non-system capsule, and recognizing the portion capsule of " If the product identification tag is not recognized, the fused mode is maintained, ie, a brewing program with reduced brewing water quantity, reduced brewing pressure and / or reduced brewing water temperature is performed, or an alternative process is initiated In the safe mode, the brewing pressure is preferably reduced, so that no risk to the user due to the pump capacity of the device of up to 19 bar is best ht, which can lead to bursting with non-system portion capsule. Preferably, after the introduction and closing of the brewing chamber, the extraction process is first started in safe mode, then the product identification identifier is detected and then the safe mode is maintained if the product identifier is not recognized, or changed to the actual brewing mode appropriate to the cartridge when the product identifier is detected and / or can be assigned to a specific portion capsule type.

Optionally, product-related information, such as the expiration date of the beverage substance, is embedded in the product identification code and in particular in the QR code. The identification detector reads the product-relevant information during the detection of the product identification code and, depending on the product-relevant information, continues or terminates the brewing process, possibly with changed brewing parameters. In this way, it can be prevented, for example, that a beverage with a serving date already exceeded the best before date portion capsule is scalded, so that health risks are avoided when consumed. This is especially important for milk-based products.

In an alternative embodiment, it is also conceivable that the portion capsule 2 comprises an RFID chip in which the product identification number is embedded. In this case, the tag detector 50 includes a transmitting and receiving antenna to read out the RFID chip. FIGS. 2a and 2b show schematic perspective views of the portion capsule 2 according to two different embodiments of the present invention. In Figure 2a, the lid 25 of the portion capsule 2 is provided with a QR code 60, while in Figure 2b, the wall of the portion capsule 2 is printed with a bar code 61. In both cases, the QR code 60 or the barcode 61 serves to provide the product identification code, which is read out by the identifier detector 50.

FIG. 3 shows a schematic view of a sales package 62, in which the portion capsule 2 is arranged during the sale or before the filling into the brewing device 5. The sales package 62 is provided with the same product identification code as the portion capsule 2 contained in the sales package 62. For this purpose, the sales package is also provided, for example, with a QR code 60 or a bar code 61. FIGS. 4a and 4b show schematic views of a portion capsule 2 of a system 1 according to an exemplary embodiment of the invention. The portion capsule 2 comprises a base element 31 and a capsule lid 25. A plurality of QR codes 60 are arranged rotationally symmetrically on the capsule lid 25. The QR codes 60 are arranged along the circumference of the capsule lid 25 in succession on a circular path. The QR codes 60 are arranged in the edge region of the capsule lid 25. In the present example, the QR codes 60 are arranged in the region with a radius 70 between 55 percent and 65 percent of the capsule lid's total radius (ie the distance between the center of the capsule lid and the outer edge of the capsule lid) about the center of the capsule lid 25. The mean diameter of the circular path of QR codes 60 is preferably substantially 26 millimeters. Each QR code 60 is preferably square in shape, with the edge length being substantially 1.18 millimeters. All QR codes 60 are identical and represent in each case the product identification code executed as GS1 code. The QR codes 60 are in particular printed with an ink on the capsule lid 25, which is visually imperceptible to the human eye in daylight and is visually perceptible only when selectively illuminated with ultraviolet light of an artificial light source. The design of the capsule lid 25 is thus not affected by the QR codes 60 shown in FIGS. 4a and 4b for illustrative purposes only. In an alternative embodiment it is provided that the QR codes in the region of a circular path with a radius between 20 and 100 percent, preferably between 30 and 60 percent, more preferably between 40 and 60 percent, and most preferably between 45 and 55 percent of the total radius of the capsule lid are arranged. The mean diameter of the ring of QR codes is preferably between 10 and 20 millimeters, more preferably between 12 and 15 millimeters, and most preferably at substantially 13.5 millimeters. Each QR code is preferably square, wherein the edge length is preferably between 1 and 20, preferably between 1 and 5 millimeters, more preferably between 1, 5 and 2, 1 millimeters and particularly preferably at substantially 1, 8 millimeters. The distance between two adjacent QR codes along the circular ring 1, 5 is preferably between 1 and 2 millimeters, more preferably between 1, 2 and 1, 8 millimeters and particularly preferably at substantially 1, 5 millimeters.

FIGS. 5a and 5b show detailed views of a brewing device 5 of a system 1 according to an exemplary embodiment of the present invention, with only the closure element 3 being shown for reasons of clarity. The brewing device 5 is based on the illustrated in Figures 1 a to 1 e brewing device 5 and operation. In contrast, the brewing apparatus 1 according to FIGS. 5 a and 5 b has an identifier detector 50 in the closure element 3, which is designed in the form of an optical camera, in particular a CCD chip, in the upper region of the closure element 3. For this purpose, the closure element 4 has an opening 71 which is closed with a transparent pane and which is formed in a contact surface 72 facing the receiving element 4 (not shown in FIGS. 5a and 5b). After the brewing chamber 1 'has been closed and transferred to the extraction position (cf. FIG. 1 d) and optionally the extraction process has already been started, the contact surface 72 is pressed against the capsule lid 25, so that at least one data matrix code or QR code 60 is pressed flat against the disc of the opening 71. The closure element 3 has a light source 79, which illuminates the region of the capsule cover 25 arranged in front of the opening 71 with ultraviolet light. Subsequently, the light beams reflected from the data matrix code or QR code 60 are recorded by means of the identifier detector 50, and the recorded data matrix code or QR code 60 is analyzed by means of evaluation electronics and the associated GS1 code is analyzed the data matrix code or QR code 60. The brewing device 5 further comprises a comparison unit, which then compares the GS1 code with a list of prestored GS1 codes to determine the type of portion capsule 2. If the GS1 code is identical to a GS1 code of the list, the extraction process is started or maintained and scalding a beverage from the beverage raw material contained in the portion capsule 2 with predetermined Brühparametern while supplying brewing liquid. The data matrix code or QR code have in the circumferential direction in each case a maximum first extent 73, which typically can be expressed surprisingly preferably equal to 1, 9 millimeters. Between two adjacent data matrix code or QR code 60, a distance 74 is provided in each case. A maximum second extent 75 of the opening 71 in the circumferential direction is at least equal to or greater than the sum of the first extent 73 and the distance 74. In this way it is ensured that regardless of how the portion capsule 2 is oriented in the brewing chamber 1 'with respect to its longitudinal axis, always at least all parts of a data matrix code or QR code 60, albeit possibly in two separate Parts are detected by the identifier detector 50. The separate parts of the data matrix code or QR code 60 may then have to be reassembled by the transmitter for evaluation. Alternatively, it is conceivable that the maximum second extension 75 is equal to or greater than the

Is the sum of twice the first extent 73 and the distance 74 or equal to or greater than the sum of the first extent 73 and twice the distance 74 (whichever is smaller). In this configuration, it is ensured that a coherent data matrix code or QR code 60 is always arranged completely in front of the opening 71, regardless of how the portion capsule 2 is randomly oriented in the brewing chamber 1 '.

FIG. 6 shows a schematic partial view of a portion capsule 2 according to an exemplary embodiment of the invention. The partial view in this case shows in particular the structure of the capsule lid 25. The capsule lid 25 comprises a transparent lidding film 76, on the back side in the edge region of the data matrix code or QR code 60 is printed and on its back additionally as needed, graphic elements how lettering or graphics are printed. The transparent lidding film 76 was subsequently glued to a transparent film, which serves as background for the lidding film 76. The transparent film simultaneously acts as a largely impermeable barrier film 77, which serves for hermetically closing the portion capsule 2. The barrier film 77 is additionally connected to a white backing sheet 78 which is glued or sealed to the peripheral flange 27 of the frusto-conical base member 31. LIST OF REFERENCE NUMBERS

1 system

1 'brewing chamber

2 portion capsule

3 closure element

4 receiving element

5 brewing device

6 Axial direction

8 end surface

10 loading position

1 1 extraction position

12 capsule stop

18 First perforating agent

19 Second perforating agent

22 floor area

23 deepening

24 drainage channel

25 capsule lid

26 loading direction

27 capsule flange

28 toggle joint

29 capsule bottom

31 truncated cone

32 water supply channel

33 groove

34 thighs

42 insertion shaft

50 identifier detector

60 QR Code

61 barcode

62 sales packaging

70 radius

71 opening

72 contact surface

73 First extension

74 distance Second extension

Transparent lidding film barrier film

support film

Light source / radiation source

Claims

PATENT CLAIMS

1 . System (1) for preparing a drink, comprising a portion capsule (2), which is filled with a beverage raw material, and a brewing device (5), which has a brewing chamber for receiving the portion capsule (2) and for extracting the drink from the portion capsule (2) by means of extraction liquid, characterized in that the portion capsule (2) has a product identification identifier and that the brewing device (5) has an identifier detector (50) for identifying the identifier of the portion capsule (2).

2. System (1) according to claim 1, wherein the product identification identifier is a GS1 code.

System (1) according to one of claims 1 or 2, wherein the product identification identifier is divided into a barcode (61), an RFID code, a QR code (60), a data matrix code, a barcode, a dot code, a binary code , a Morse code, a Braille character code or the like is embedded.

System (1) according to one of the preceding claims, wherein the brewing device (5) comprises a control unit which only initiates an extraction when the identification detector (50) detects a known product identification identifier.

5. System (1) according to one of the preceding claims, wherein the brewing device (5) comprises a control unit which starts a specific brewing program depending on the product identification code detected by the identification detector (50).

6. System (1) according to one of the preceding claims, wherein the brewing device (5) comprises a control unit which initiates an alternative process when the identification detector (50) detects an unknown product identification identifier.

System (1) according to claim 6, wherein the alternative process comprises a capsule ejection process, a cleaning process or a brewing program with reduced brewing water quantity, reduced brewing speed, reduced brewing pressure and/or reduced brewing water temperature.

8. System (1) according to one of the preceding claims, wherein the system (1) has a sales packaging (62) in which the portion capsule (2) is placed before being inserted the brewing device (5) is arranged, the sales packaging (62) being provided with the same product identification code.

9. System (1) according to claim 8, wherein the product identification identifier arranged on the sales packaging (62) is provided for identifying and tracking the portion capsule (2) arranged in the sales packaging during the transport, storage and / or sale of the portion capsule (2). is.

10. Portion capsule (2) for a system (1) according to one of the preceding claims, wherein the portion capsule (2) has a frusto-conical base element (31) with a cavity for receiving the beverage raw material and a capsule lid (25) closing the cavity, the Product identification recognition is arranged in the area of the capsule lid (25) and/or in the area of a capsule flange (27) and/or on the base element (31).

1 1 . Portion capsule (2) according to claim 10, wherein the product identification code is embedded in a QR code (60) and wherein a plurality of the QR codes (60) are arranged one behind the other in the circumferential direction on a circular path on the capsule lid (25).

12. Portion capsule (2) according to claim 12, wherein the QR codes (60) in the area of a circular path with a radius between 40 and 100 percent, preferably between 50 and 80 percent and preferably between 55 and 65 percent of the total radius of the capsule lid (25) are arranged.

13. Portion capsule (2) according to claim 12, wherein the QR codes (60) in the area of a circular path with a radius between 20 and 100 percent, preferably between 30 and 70 percent, particularly preferably between 40 and 60 percent and very particularly preferably between 45 and 55 percent of the total radius of the capsule lid (25) are arranged.

14. Portion capsule (2) according to one of claims 10 to 13, wherein each QR code (60) has a maximum first extension (73) in the circumferential direction and a distance (74) is provided between two adjacent QR codes (60). is, wherein the distance (74) is smaller, equal to or larger than the first extension (73).

15. Portion capsule (2) according to one of claims 10 to 14, wherein the portion capsule (2) comprises at least one carrier film (78) and a transparent cover film (76), wherein the QR codes (60) are arranged between the carrier film (78) and the cover film (76) and are printed in particular on the back of the cover film (76), the carrier film (78) preferably facing the base element (31) and the cover film (76) faces away from the base element (31).

16. Portion capsule (2) according to one of claims 10 to 15, wherein the QR code (60) is printed with an ink that reflects ultraviolet light.

Portion capsule (2) according to one of claims 10 to 16, wherein the base element (31) has a circumferential flange (27) to which the capsule lid (25) is attached, with an underside of the flange (27) facing away from the capsule lid (15). ) the plurality of QR codes (60) are arranged one behind the other in the circumferential direction on a circular path.

Brewing device (5) for a system (1) according to one of claims 1 to 9 or for use with a portion capsule (2) according to one of claims 10 to 17, wherein the brewing device (5) has a receiving element (4) with a receptacle for the Portion capsule (2) and a closure element (3), the closure element (3) being between a loading position (10), in which the receiving element (4) and the closure element are spaced apart from one another, and an extraction position (1 1), in which the Receiving element (4) and the closure element (3) are moved closer to one another to form a substantially closed brewing chamber (1 ').

Brewing device (5) according to claim 18, wherein the receiving element (4), a housing of the brewing device (5) or the closure element (3) has the identification detector (50).

20. Brewing device (5) according to one of claims 18 or 19, wherein the closure element (3) has an opening (71) on a side facing the receiving element, the identification detector (50) in the area of the opening (71) within the closure element ( 3) is arranged, the opening (71) preferably being closed by a transparent window.

21. Brewing device (5) according to one of claims 18 to 20, wherein the closure element (3) has a substantially round contact surface (72) facing the receiving element (4) for contact with the capsule lid (15) in the extraction position (1 1), wherein a detection surface of the identification detector (50) and/or the opening (71) is formed in the contact surface (72).

22. Brewing device (5) according to claim 21, wherein the detection area and / or the opening (71) in a range between 50 and 100 percent, preferably between 60 and 90

Percent and preferably between 70 and 90 percent of the total radius of the contact surface (72) is arranged.

23. Brewing device (5) according to claim 21, wherein the opening is arranged in a range between 20 and 100 percent, preferably between 30 and 70 percent, particularly preferably between 40 and 60 percent and very particularly preferably between 45 and 55 percent of the total radius of the contact surface .

24. Brewing device (5) according to one of claims 18 to 23, wherein the detection surface and / or the opening (71) has a second extension (75) in the circumferential direction of the contact surface (72), which is larger in the circumferential direction than the first extension (73 ) is.

25. Brewing device (5) according to one of claims 18 to 24, wherein the second extension (75) in the circumferential direction is equal to or greater than the sum of the first extension (73) and the distance (74).

26. Brewing device (5) according to one of claims 18 to 25, wherein the second extension (75) in the circumferential direction is equal to or greater than the sum of twice the first extension (73) and the distance (74) or the sum of the first Extension (73) and twice the distance (74).

27. Brewing device (5) according to one of claims 18 to 26, wherein the closure element (3) has a radiation source and in particular a light source (79) for emitting visual and / or ultraviolet light in the direction of the portion capsule (2).

28. Brewing device (5) according to one of claims 18 to 27, wherein the identification detector (50) is designed to read out signals reflected from the portion capsule (2) in the visual and / or ultraviolet wavelength range.

29. Brewing device (5) according to one of claims 18 to 29, wherein the brewing device (5) has evaluation electronics which is coupled to the identification detector (50). and is intended to determine the product identification code by analyzing the detected QR code (60).

Brewing device (5) according to claim 29, wherein the brewing device (5) has a comparison unit which is provided for comparing the specific product identification identifier with a list of pre-stored product identification identifiers.

31. Method for handling a portion capsule (2), wherein in a first process step at least one portion capsule (2) and a sales packaging are provided with the same product identification code, wherein in a second process step the sales packaging is filled with the at least one portion capsule (2), wherein in In a third method step, the filled sales packaging is stored, transported and/or sold and in a fourth method step the portion capsule (2) is removed from the sales packaging by a consumer, inserted into a brewing device (5) and used to extract a drink from the portion capsule (2 ) the brewing device (5) is started, characterized in that in the third process step the product identification code located on the sales packaging is read and evaluated in order to identify the portion capsule (2) and/or the manufacturer of the portion capsule (2) for logistical purposes, and wherein in the fifth method step the product identification code located on the portion capsule (2) is read and evaluated by an identification detector (50) of the brewing device (5) in order to check the compatibility of the portion capsule (2) with the brewing device (5).

Method according to claim 31, wherein in the first method step the at least one portion capsule (2) and the sales packaging (62) are provided with a product identification code in the form of a GS1 code.

33. The method according to any one of claims 25 or 26, wherein in the first method step a barcode (61), an RFID code, a bar code, a dot code, a binary code, a Morse code, a Braille character code or a QR code (60), in in which the product identification code is embedded, are printed on the portion capsule (2) and the sales packaging (62).

34. A method for operating a system (1) according to one of claims 1 to 9, wherein in a first operating step a portion capsule (2) according to one of claims 10 to 17 is inserted into a brewing device (5) according to one of claims 18 to 30 , where in a second operating step, the brewing device (5) is transferred from the loading position (10) to the extraction position (1 1), wherein in a third operating step the QR code (60) arranged on the portion capsule (2) is detected by the identification detector (50). is read out, wherein in a fourth operating step the product identification identifier is first determined from the QR code (60) and in a fifth operating step the extraction process is then initiated if the product identification identifier can be identified, or wherein in a fifth operating step the extraction process is first initiated and in a subsequent fourth method step, the product identification identifier is determined from the QR code and the extraction process is maintained or carried out according to a specific brewing program if the product identification identifier is identifiable.

35. The method according to claim 34, wherein in the fifth operating step an extraction process with brewing parameters is initiated or continued, at least one brewing parameter being selected depending on the identified product identification code.

Method according to one of claims 34 or 36, wherein in the third operating step the QR code (60) is illuminated by a light source (79) arranged on the closure element (3), in particular with visual and / or ultraviolet light, and from the QR code ( 60) reflected light rays are detected by the identification detector (50).

Method according to one of claims 34 to 37, wherein in the fifth operating step the product identification identifier is compared with a list of pre-stored product identification identifiers.

Method according to one of claims 34 to 37, wherein in the fifth operating step the brewing device (5) is moved back into the loading position (10) without an extraction process or after the extraction process has been terminated, or an alternative process, such as in particular a capsule ejection process, a cleaning process or a brewing program with reduced Brewing water quantity, reduced brewing pressure and / or reduced brewing water temperature is started if the product identification identifier is not identified and in particular cannot be found on the list of pre-stored product identification identifiers.

Method for producing a portion capsule (2) according to one of claims 10 to 17, wherein a transparent cover film (76) is provided in a first production step. is provided, wherein in a second manufacturing step the QR code (60) is printed on a back of the cover film (76), wherein in a third manufacturing step the back of the cover film (76) is connected to a barrier film (77) and in a fourth Manufacturing step the composite of cover film (76) and barrier film (77) is attached to the base element (41).

40. The method according to claim 39, wherein in the second manufacturing step a label and/or graphic is printed on the back of the cover film (76) after the QR code (60) has been printed.

41. Method according to one of claims 39 or 40, wherein in a fifth manufacturing step carried out before, after or during the third manufacturing step, the barrier film (77) is connected to a carrier film (78) on a side facing away from the cover film (76).

42. The method according to any one of claims 39 to 41, wherein in the second method step the QR code (60) is printed with an ink whose visual perceptibility is increased by targeted illumination with ultraviolet light.