CN101505610A - Method and apparatus for making a tea concentrate - Google Patents

Abstract

A method of making an individual serving of an aqueous tea concentrate comprises locating at a strainer a quantity of loose particulate tea material that is sufficient to produce the individual tea concentrate serving. The quantity of tea material is directly contacted with a sufficient amount of water so as to produce the individual tea concentrate serving. The particle size of the tea material, the tea material-water contact time and the temperature of the water can each be controlled so as to minimise the extract of tannins from the tea material and into the concentrate. The aqueous tea concentrate is collected once it has passed through the strainer to thereby separate it from the particulate tea material. Apparatus and a kit for making the concentrate can comprise a strainer (34) at which a quantity of loose particulate tea material can be located for contact with water so as to produce an aqueous concentrate that is separated at the strainer from the tea material, and a mass (36, 36A) that is locatable on the loose particulate tea material so as to restrain the upward expansion of the loose particulate tea material when it is directly contacted with the water.

Description

The method and apparatus of preparation tea concentrate

Technical field

A kind of method and apparatus for preparing tea concentrate is disclosed.Also disclose by the tea concentrate of this method preparation and the tool set system of this method of enforcement.The term of Shi Yonging " tea " comprises the leaf of dry and/or ready Theaceae system (comprising tea plant (plant Camellia sinensis)) plant in this article, and comprises and can be dried and/or prepare and be used for the leaf, flower etc. of any kind of of other of subsequent preparation beverage concentrates relevant or incoherent plant, species etc.

Background technology

Tea beverage by the preparation of camellia department plant contains blending constituent in the aqueous solution, this blending constituent is to extract/leach from the leaf of dry or ready these plants.This composition comprises Polyphenols, flavonoid class, catechu acids and tannins (with reference to Journal of Chinese Medicine).Tannins for can with combined with protein and the precipitation puckery and plant polyphenol kind that bitter taste is arranged, yet, this term more generally is applied to any large-scale polyphenolic substance, this compound contains enough hydroxyls and other group (as carboxyl) that is fit to, thereby forms firm compound with protein and other macromolecule.The catechuic acid class belongs to flavan-3-alcohol (flavan-3-ol) group of flavonoids.Four kinds of main catechuic acids finding in tea are gallocatechin, epigallocatechin (epigallocatechin), epicatechin and epigallocatechin gallate (epigallocatechingallate).Research points out that the tea flavonoids has antioxidation activity, and relevant with antibacterial characteristics with anticancer, anti-inflammatory, resisting atherosis (anti-atherogenic), the Sheng Re of tea.

The composition more specifically of tea comprises caffeine, theanine, theobromine and theophylline.

Coffee can be used as neural minimal irritation thing because there is not alkaloid smell, little bitter taste, block nerves mediator adenosine, and produce good feel and alertness.It can increase heart rate, blood pressure and urinate, and gastric acid secretion.The content of caffeine is different along with tea kinds, and black tea and oolong tea are higher, and green tea and white tea are lower.

Theanine is a nonprotein amino acid, finds mainly to be present in natively in the tea plant (tea plant).Theanine is the derivative of L-glutamic acid (glutamate), and thinks that the fragrance with tea has very big relation.It accounts for 1% to 2% of green tea leaf dry weight.People are understood that the GABA binding characteristic of theanine can produce the sensation of loosening.

Theobromine belongs to alkaloid branch subclass, as is known methyl xanthine class (methylxanthines).Methyl xanthine system results from nearly in 60 kinds of different plant species natively, comprises caffeine (in the coffee main methyl xanthine) and theophylline (in the tea main methyl xanthine).Theobromine is similar to caffeine to the influence of human body, but influences less.Theobromine is gentle diuretics, gentle stimulus, and the bronchial smooth muscle of lung that can relax.

Theophylline is the alkaloid that is used for the colourless crystallization that content is very little in medical science such as the concurrent present tea of bronchus swelling agent.It is stronger than caffeine to the influence of heart and breathing.It is cardiac stimulation agent, smooth muscle relaxant, diuretics and blood vessel swelling agent.

Tea beverage can prepare easily by adding in as tea bag or kettle corresponding to the tealeaves of the bubble system specified quantitative of the volume of wanting to pour out glass number.This preparation relates to immersion process, and this immersion process also can extract tannin in the infusion thing except can extracting the tea smell composition of wanting.Soak time is long more, because the tannin that extracts increase is dense more and bitter more thereby the infusion thing just can become.In addition, because the concrete aroma profile of tealeaves, the tannin that increases more difficult covering that can become like this, so the consumer more can realize.

Attempted to simplify or quicken the passes during brewing of tealeaves in the art.For example, US 4,061, and 793 disclose the method for a kind of beverage brewed such as coffee (but mentioning tea).The coffee powder that is retained in sieve or off the net scheduled volume is placed on the filter that is arranged in above the cup.Single cup of coffee can make by add entry in this filter, and described water slowly (2-3 minute at least) flows through screen cloth and filter.This arrangement is in order to prepare the normal concentration beverage of standard drink volume.

JP 02-071713 discloses a kind of " tea extractor " device that is used for the preparation of acceleration " tea extract ", and relates to the design of this extractor, rather than tea preparation process or prepared product extract.

US 5,245,914th, are used to prepare the brewing devices of extract of the immersion of iced tea (that is being 1/4 with 3/4 frozen water with this extract dilution) about a kind of production.Because this extract is diluted, so the device of this part file is not the preparation about no tannin tea concentrate; What more properly emphasize is end product rather than middle extract.

US 6,182, and 555 disclose a kind of use was kept in the storage bin, dry before using and water miscible pulverous (being instant) tea and soak the device of tea with preparation " single part " tea beverage.Because powder has high surface, immersion just can extract great deal of tannin and enter in the final beverage.Therefore will prepare the tea beverage of normal concentration, the used in amounts of powder will reduce the unnecessary tannin that extracts with equilibrium, thereby reduces the content of the extraction component of more wanting (as fragrance).Similarly, because single portion of tea beverage is diluted, so the device of this part file does not relate to the preparation of no tannin tea concentrate.

Attempt preparation in the art and had the fragrance concentration of the concentrated coffee of being similar to (that is the small volumes of liquids that, has concentrated fragrance) and the tea extract of volume.Yet the problem of excessive tannin degree is present in this extract inevitably, thereby prepares the beverage than hardship and some difference of taste.

For example, US 2,688,911st, about a kind of concentrated machine that is used for the preparation of coffee, tea etc.In the document, water forces under pressure in the coffee strainer device 41 by the standard airtight (limitation) that coffee etc. is housed.This device is when being applicable to coffee, because tealeaves obviously expands when contacting with hot water/boiling water (about 60%).Therefore, if pack into the tea time in device 41, in the confined space of device 41, tea contacts with pressure (hydraulic) water and expands, thereby reduces the flow velocity of water by the tea material gradually.So fill, in conjunction with confined space, make the tea material be subjected to the effect of pressure (hydraulic) water afterwards again, tangible tea soaks and extraction thereby produce, and prepares bitter tea extract inevitably.In addition, US2 is in 688,911 and the preparation method of unexposed tea.

US 5,895, and 672 only relate to use tea " pod " preparation tea extract, and wherein, tealeaves is sealed in the filter paper pod of the tea that contains specified quantitative.Make this pod moulding to be fitted close in the connector device.This connector device is designed to make pressure (hydraulic) water to flow at the pod edge all around but must flows through pod.Known because the back pressure of the filter paper of pod tends to stop uninflated water to flow through this pod, therefore there is not this pod of pressure (hydraulic) water to work.In addition, because tea is confined in the pod, tea can obviously expand in confined space with after the pressure (hydraulic) water of heat contacts, thereby reduces the flow velocity of water by the tea material gradually.Because pod is filled and this swelling, and in conjunction with confined space and pressure (hydraulic) water, similarly, dense tea extract also can be bitter.

The document of quoting prior art is not in this article represented the part of the common practise of admitting these documents formations those skilled in the art.

Summary of the invention

In aspect first, the invention discloses a kind of preparation method of single part of water-based tea concentrate, this method may further comprise the steps:

(a) the discrete particles tea material that will be enough to prepare the amount of single part of tea concentrate is put into filter;

(b) the tea material that directly will measure contacts with the water of capacity, to produce single part of tea concentrate, wherein controls following each parameter, thereby the amount that extracts and enter the tanning extract of tea concentrate from the tea material is minimized:

The particle size of-described tea material;

The time of contact of-described tea material-water;

The temperature of-water;

(c) when single part of tea concentrate passes through filter, collect the water-based tea concentrate, thereby it is isolated from particle tea material.

Can prepare according to the method for described first aspect and to have strong and do not have the water-based tea concentrate of bitter taste relatively, and the concentration of this water-based tea concentrate can be compared with the coffee extract of using the concentrated coffee device to make.Because relative no bitter taste, so this concentrate can be directly separately as beverage.Yet, be similar to coffee concentrate (coffee espresso shot), this concentrate liquid also can be widely used as the basis of various beverages, take iron, tea Cappuccino (tea cappuccinos), tea iced drink, oolong tea (long tea), oolong iced tea (long ice tea) etc. (promptly as teas, can not be diluted to this type of beverage, when keeping enough tea local flavors and not the bitter taste relevant) with tannin.The volume that depends on prepared water-based concentrate, single part of concentrate also can be divided into less many parts.

When this water-based tea concentrate still contains the tannin of a little amount, when this concentrate is compared with the tea beverage for preparing with known method with conventional method or use known devices (as coffee machine (coffee-making)), the content of tannin is relatively low in this concentrate, thus drinking person discover less than or feel not obvious.

The applicant finds that some help to have strong and do not have the correlative factor of preparation of the concentrate of bitter taste relatively.In this, except tea material granule size and tea-water parameter of time of contact, under proper temperature, directly discrete particles tea material is contacted with water and just can produce the strong and relative concentrate that does not have bitter taste.

Suitably these factors of control also can make the extraction maximization of tea smell composition such as theanine, and other beneficiating ingredient (as described in the background art) is entered in the concentrate than the preferential extraction of tannin.

About tea material granule size, this tea material can comprise broken leaf, the end of the blade through grinding or their combination.If use blade end, be ground to usually and can impel water optimized size time of contact through grinding.

The applicant finds in described method, and the time of making the water-based concentrate can reduce and increases along with tea material granule size.Yet, grind too for a short time (as grind into powder) as the fruit tea material, this particle can tend to assemble, and tends to blocking filter (especially needing to use the microfiltration device with in the filter that prevents the powder outflow).Make powder miniaturization meeting cause exceedingly soaking and extracting excessive tannin.On the contrary, too big as the fruit tea material, it is not enough that then water can flow through the tealeaves surface of tealeaves or contact too soon, produces rare infusion thing.Therefore, tea material granule size is relevant with time of contact, and needs control.

In one embodiment, employed particle tea material is a tealeaves final stage tea.Best tea dust size can be for the 18-24 order of Tyler measurement series (promptly per square inch in 18 to 24 holes are arranged).Observed and be placed on the gap that the loose tealeaves final stage tea in the filter is produced, thereby the optimum water that flows through tea material heap and best tea-water time of contact is provided.

() tea concentrate for example, a standard drink, the weight of particle tea material can be for below about 10 grams in filter for single part.The volume of the tea concentrate of water that uses and preparation like this can be for below about 70ml, to prepare the concentrate below about 40ml.

Convenient for described method is implemented, can provide with for example pouch or parcel corresponding to the tea material of the suitable grade of the scheduled volume of single part of tea concentrate aequum.In addition, be used to distribute the device of boiling or the approaching water that seethes with excitement to be configured to distribute volume required water (as preparing the gained tea concentrate of about 40ml).

About the tea material of the tea concentrate of single part (as a standard drink)-water time of contact, be about 15-60 second time of contact usually, bestly is about 20-30 second.In this, if time of contact is too short, does not extract the tea smell composition and make rare infusion thing just water has time enough.If oversize,, cause the excessive extraction of tannin just water can soak into this tealeaves.

Can be when changing in time of contact along with the particle size of tea material, also must change (relative with white tea (white tea) with oolong tea) time of contact along with the kind of tea material with green tea as black tea.

In addition, time of contact can be by regulating the optimization by the current of tea material heap.Except the tea granule size, these current can be by the partly control by the flow velocity of filter.When using granular membrane, observed for tealeaves final stage tea, best mesh size is about 2mm.

Because the water of pressurization can force water too soon by the tea material in the filter, therefore water is under the atmospheric pressure usually.The espresso coffee machine that uses in the prior art uses the water of pressurization in the device of preparation coffee, with the preparation tea beverage, it is strong and do not have a tea concentrate of tannin therefore not to be suitable for preparation.

About water temperature, usually use boiling or near the water of boiling with directly be placed on filter in the tea material contact.In this manual, term " near the water of boiling " refers to that temperature is about water more than 95 ℃.Observe, when tea material and temperature are starkly lower than 95 ℃ water when contacting, cause the extraction of tea smell composition not enough and make rare infusion thing.And the water of lower temperature needs excessive time of contact, causes too much tea granule to expand, and causes to soak into too much tannin extract to take out.

In this manual, refer to that about the term " loose " of particle tea material this tea material is not solid or tight placement, and do not have compressing of any measurable degree.

In this, in step (a), block object can be placed on above the discrete particles tea material, thereby restriction tea material is because upwards expansion when contact with water.In one embodiment, this bulk object can be disk.This bulk object can have one or more through holes.Yet, select this bulk object to compress avoiding, thereby stop or limit water and flow through tea material heap.

Water can pass through disperser before in step (b), thereby makes by maximizing with the distribution that is positioned at the water on the particle tea material.In this embodiment, but described disperser disperse water, thus average contact is provided, and make described tea material heap moistening.In one embodiment, when described block object provided a plurality of through hole, described block object can be used as disperser.

In one embodiment, described filter can comprise the hollow-cone stage body (frusto-conical hollow body) that wherein can place discrete particles tea material.Filter screen can be arranged on the narrow end of this hollow-cone stage body, and in use, this loose tea granule material is placed on the contiguous place of described screen cloth.Described block object can mechanically be connected with described filter, thereby optionally uses after discrete particles tea material is positioned over filter.

In the embodiment that changes, this method can comprise one or more flavoring substances are added in the tea material before and/or are added to additional step in the water-based concentrate in step (b).Described flavoring substance can comprise sweetener, medicinal herbs, spices etc.

In one aspect of the method, the invention discloses a kind of device for preparing tea concentrate, this device comprises:

(a) filter can be placed a certain amount of loose tea granule in this filter, contacting with water, thereby preparation in filter from the tea material isolated water-based concentrate; With

(b) block object, this bulk object can be placed on the discrete particles tea material, thereby suppresses upwards to expand when described discrete particles tea material directly contacts with water.

In one embodiment, described block object can be disk (as stainless).Described block object has one or more through holes.

In one embodiment, when described block object has a plurality of through hole, can be used as disperser so that the water distribution maximization on the described particle tea material.In the method, described block object can be with aqueous dispersion on the tea material, to provide and average the contacting of whole heap tea material.

In one embodiment, described filter comprises the hollow-cone stage body that wherein can place described discrete particles tea material.Filter screen can be arranged on the narrow end of this hollow-cone stage body, and in use, this discrete particles tea material is placed on the contiguous place of screen cloth.When using the tealeaves final stage tea time, have been found that best mesh size be about 2mm, with the optimum flow rate of promotion, thereby provide the tea of the best-water time of contact by filter.Mesh size also can be adjusted according to the tea material rate, keeping the flow velocity by filter, thereby provides best tea-water time of contact.

Described filter also can be connected in the existing hot water dispersal device, as is positioned at the outlet of espresso coffee machine.Yet described filter is set at usually when being positioned over the tea material wherein, has the space above the tea material, thereby allows the tea material to expand in use.

In one embodiment, described block object mechanically is connected with filter, thereby optionally uses after making described discrete particles tea material in being positioned over described filter.In this, described block object can be connected with described filter by the connector of flexible or rigidity.Described rigid connector can be connected with described filter, make described block body between non-use position and use location, to rotate, wherein, described non-use position does not disturb the tea material that is placed in the filter, and described use location restriction discrete particles tea material upwards expands.

When described block object when being discoid, this connector can extend to from this disk and intactly stretch out.In one embodiment, can this connector be embedded on the filter rotationally at the offside that filter is connected with disk.Select a ground, the connector of prolongation can and can be used as handle for the handle form, thereby described block body can manually be used.

In aspect the 3rd, the invention discloses a kind of by method that is defined in first and second aspects or the tea concentrate that installs preparation.

In fourth aspect, the invention discloses a kind of tool set for preparing tea concentrate, the device that described tool set is set forth in comprising aspect second, and be used for according to the metrical instrument of the particle tea material for preparing single part of tea concentrate in the method aspect first or be used at least a at the container of tea concentrate by collecting tea concentrate behind the described filter.

Such tool set can make the consumer one day any time, for example at home, at work, in when leisure etc., when needs, to prepare tea concentrate easily.

In described tool set, the metrical instrument of at least a particle tea material can be placed at least one corresponding parcel or pouch.A plurality of such parcels or pouch can be provided in described tool set.Described tool set also can comprise a plurality of parcels or the pouch that other additive such as sweetener, medicinal herbs, spices etc. are housed.Select a ground, the metrical instrument of described at least a particle tea material can be provided as proportioning device such as the spoon or the soupspoon of predetermined volumes.

Described tool set can comprise the container more than, and described (each) container can comprise having cup or the glassware of enough at least volumes to hold described tea concentrate.Yet this cup or glassware have enough volumes, take iron, teas Cappuccino, oolong tea etc. so that can prepare beverage such as teas subsequently therein.And the size of described container most preferably is and described filter coupling.

Description of drawings

Although the method for setting forth in the summary of the invention, device, tea concentrate and tool set can comprise any other form, the specific embodiment will be only by the mode of embodiment and be described with reference to the following drawings, wherein:

Fig. 1 represents to prepare the indicative flowchart of embodiment of the method for tea concentrate, and comprises a plurality of optional steps.

Fig. 2 represents to prepare the front view of device of first embodiment of tea concentrate.

Fig. 3 A and 3B represent to prepare the front view of device of the second and the 3rd embodiment of tea concentrate.

Fig. 4 represents to prepare the front view of device of the 4th embodiment of tea concentrate.

Fig. 5 represents to prepare the front view of tool set of first embodiment of tea concentrate.

Fig. 6 represents to prepare the front view of tool set of second embodiment of tea concentrate.

The specific embodiment

At first with reference to Fig. 1, the method step of preparation tea concentrate illustrates in the flow chart mode.This method can prepare the tea concentrate for the single about 30-40ml that drinks.This concentrate can be used as single part and directly drinks, or can be immediately or add subsequently and be mixed in the medium of wanting, and described medium comprises milk heat or cold, espresso (Steam Heating) milk bubble, water heat or cold, ice cube etc.Use this method, can form various beverages and comprise by iron, Cappuccino, iced drink, oolong iced tea etc.

This method comprises two core procedures, and directly contact procedure and separating step can also increase other optional step under the situation of needs.The control extraction step of representing among described contact procedure such as Fig. 1 10, described separating step filters 12 as shown in Figure 1.Optional step shown in Fig. 1 is for putting into block object/dispersion 16 and seasoning 14.

In extraction step, make water 18 direct and a certain amount of discrete particles tea materials of boiling or approaching boiling, contact as the tea admixture of representing among Fig. 1 20 usually.It is about 95-100 ℃ water that term " near boiling " is used to describe when it contacts with tea material temperature.Can be in this scope from the obtainable water of the outlet of some espresso coffee machine.

The application's applicant is surprised to find that, by the time period of controlling the discrete particles tea material of determining grade and boiling or directly contacting near the water that seethes with excitement, can make strong and tea concentrate few or significantly reduced tannin extract is arranged.When flowing through space between the tea admixture when boiling or near the water 18 of boiling, the tea smell composition (as theanine etc.) from tealeaves, discharge (or leaching gradually) in water, thus make and the tea material residue water-based tea concentrate 22 that separate, that contain tannin that keeps.This water-based concentrate is through filtering 12, wherein the tea concentrate 26 of gained can directly use or storage so that follow-up use or further processing.

In described method, immediately this tea admixture is placed on the contiguous place of filter usually, as bullet or other filter (as described below), thereby, filter 12 and take place immediately in case make water by the heap of the tea material in the step 10.

Fig. 1 also illustrates the optional method step in the mode of seasoning step 14, wherein, and as described in various flavoring substances can being added to as sweetener, medicinal herbs and spices etc. 28 in the concentrate 26, so that any taste of wanting to be provided.Perhaps, shown in dotted arrow among Fig. 1 15, these sweeteners, medicinal herbs, spices etc. can be added with described tea admixture, thereby extract/be dissolved in the described water-based concentrate 22.

The time of extraction process and temperature can change along with employed particle tea properties of materials.The kind (shrub tea tree, roseleaf, India's spices tea (masala) etc.) of the particle size of the material that uses in factor such as the tea admixture, type of material (being leaf, flower or other vegetable material) and material can influence the mode of the method for being implemented and prepared gained concentrate.This method can be by changing tea material in the extraction step 10 particle size and tea-water time of contact to adapt to these factors.

For example, if with the particle sizes of 10 grams be the pekoe tea dust (pekoefannings) of 18-20 order (Tyler sieve) as the tea admixture, then can be less than when using 10 particle sizes that restrain be the orange required extraction time of tea dust (orange fannings) of 20-22 purpose the time of extracting.The particle size of material can influence the back pressure of the current in the gap that appears at discrete particles tea material.

When described discrete particles tea material became wet, this back pressure also can be subjected to the expansion of discrete particles tea material and the influence of buoyancy effect.Therefore, Fig. 1 also illustrates the optional method step with the form of introducing block object and/or optional dispersion steps 16.

By block object is placed on the granular material stockpile that places filter, can limits discrete particles tea material and directly expand with boiling/making progress when contacting near the water that seethes with excitement.

By will seethe with excitement/near the aqueous dispersion of boiling to the granular material stockpile that places filter, can reach the tea effect of extracting of average moistening and better control.As described below, place the block object on the granular material stockpile also can provide peptizaiton.In any case, select and locate described disperser, thereby keep in touch the suitable water temperature of this tea material.

This bulk object can derive from the form of wide range, wherein should the bulk object comprises the element of suitable weight and shape, thus the described discrete particles tea of unlikely excess compression material, and therefore excessively slow down the current that pass through.Have been found that the disk-like element (as the stainless steel packing ring) with one or more through holes can be used as suitable block object.

Disperser can be the aqueous dispersion device of screen cloth or other perforation.

Described tea admixture can comprise various discrete particles tea materials, leaf as dry and/or ready tea plant, or when contacting, can discharge the leaf, flower etc. of other plant of any kind of aqueous extract, thereby make drinkable teas concentrate (as the leaf of peppermint, spearmint, yellow chamomile, the rose of Sharon, fructus rosae (rosehip) etc., flower etc.) with water.Common described particle tea material comprises broken leaf, the end of the blade through grinding or their combination.

In an example of the method for using Fig. 1, use the pekoe tea dust, yet the example of the broken leaf that other is fit to comprises orange tea dust and the red pekoe tea dust (broken orange pekoe fannings) of mandarin orange.The example of these tea dusts is roughly relevant with the grade of tealeaves, and the grade of described tealeaves is determined by the size of tealeaves usually.The admixture of these tea dusts and other tea grade can be used in the described method, thereby provides market, fusion device or described tea concentrate for the specific region to want the consumer groups of selling and the tea concentrate that designs.

For example, can adopt this method to use tea dust and green tea to prepare tea concentrate from Darjeeling (Darjeeling), Assam (Assam), Neil lucky (Nilgiri), Sri Lanka (Sri Lanka).When with described particle tea dispersion of materials in pouch, parcel or other quantitative container the time, described tea material can mix with spices such as Chinese cassia tree, cardamom, ginger, cloves etc.Perhaps, described particle tea material itself can carry out seasoning by the essence (edible essential oil) as its prescription part.

Described method allows user (as barista (barista)) to prepare the beverage of tea concentrate as single portion of beverage or follow-up branch cup in advance.Described tea admixture can be supplied to the user with single part amount, as is placed in pouch or the parcel, can be used as perhaps in advance that admixture uses measurer to distribute from bulk container by the consumer, perhaps can mix on the spot.Usually for single portion of beverage, approximately the tea admixture of 8-10 gram generally is suitable for preparing the tea concentrate of " one glass (shot) " volume that is about 40ml.Yet, can add more or less tea admixture to adapt to individual's taste hobby.

Described method comprises that also the permission user prepares large batch of tea concentrate, and described large batch of tea concentrate can be considered " single part ", can be divided into less many parts with described part afterwards.This batch also can prepare in advance in order to follow-up use.

With reference to Fig. 2-4, described the numerous embodiments of the device that is used to prepare tea concentrate among the figure, and, noted similar or same parts same numbers mark in following detailed description.

Each device among Fig. 2-4 all can be used for the method for preparing tea concentrate implementing to be addressed in the present invention.Described device can comprise the filter of filter assemblies form.Described filter assemblies can adopt the various ways that comprises simple support filter paper successively, yet, when being durable and use expediently, described filter assemblies can placing and stand on certainly the form in the required container of tea concentrate (as cup).

The form of the filter assemblies 30 in each figure of Fig. 2-4 comprises the hollow-cone stage body 34 by suitable food grade materials (as stainless steel) construction.The narrow end 40 of hollow-cone stage body 34 as described in fine braided metal (fine woven metal) (as stainless steel) screen cloth 38 is fixed on.For easy operating, when described hollow-cone stage body 34 heating, described hollow-cone stage body provides the side outstanding handle 35.

Described filter assemblies can be used in combination with previously described block object.For example, in Fig. 2, described block body surface is shown the form of packing ring 36, and in use, described packing ring 36 can be arranged on the tea material that is placed on described hollow-cone stage body 34.

In Fig. 3 A, the mode that described packing ring 36 is expressed as by chain 37 is connected on the described hollow-cone stage body 34.In Fig. 3 B, the mode that described packing ring 36 is expressed as by curved elongated arm 39 is pivotally connected on the described hollow-cone stage body 34.Described arm 39 integrally extends from packing ring, and be pivotally connected to described hollow-cone stage body protuberance 41 to side.Therefore described packing ring can move between non-use position as shown in FIG. and after the tea material is put into described hollow-cone stage body and use location or rotate, and wherein said use location can be positioned on the tea material.The action route of described rotation is represented by dotted lines in Fig. 3 B.By described packing ring being connected on the described hollow-cone stage body 34, maybe when using the described filter assemblies 30 of back cleaning, it is less that the possibility of accidental destruction appears in described packing ring when handling moistening used tea admixture.

In Fig. 4, described block body surface is shown the form of the disk 36A that comprises complete handle 42, thereby on the tea material that makes disk be easy to be positioned in use to place described hollow-cone stage body 34.Described disk 36A comprises a plurality of through holes 44, thereby makes described through hole produce the effect that dispersion train is crossed the hot water on the tea material that places described hollow-cone stage body 34 in use.Described disk also can have the diameter of increase, thereby when the tea material used, critically the internal diameter of the described hollow-cone stage body 34 of locating with this disk matched, and suitably locatees and help to strengthen aqueous dispersion with the described disk of further help.

With reference to Fig. 5, first kind of tool set embodiment 50 is expressed as filter assemblies 30 and the packing ring 36 that comprises among Fig. 2, and the container with glass 54 forms of special-purpose cork plate mat 56 and handle 58.Described filter assemblies 30 most preferably is size assortment with glass 54 and uses.

In Fig. 6, another kind of tool set 60 has been described.Similarly, described tool set also comprises filter assemblies 30 and the packing ring 36 among Fig. 2.Yet except glass 54, plate mat 56 and handle 58, described tool set 60 can comprise one or more pouches 70 through packing, all comprises the tea admixture of a certain amount of optimal level of wanting that is used for described assembly 30 in each described pouch.Described a certain amount of being designed to provides best dosage to these specific tool set parts, thus the suitable strong and tea concentrate that do not have bitter taste of preparation.

Described tool set 50,60 can be made of the packing ring/disc structure among Fig. 2-4 arbitrarily.Described tool set 50,60 can comprise container, parcel/big bag, bag, box etc.Described tool set 50,60 can also comprise the explanation of implementing described method and the prescription of various tea admixtures.In addition, tool set as described in the pouch that comprises other composition (as sweetener, medicinal herbs, spices etc.) that is used for fusion also can be included in.

Described tool set 50,60 also allows user's what when and where easily in office, for example is in or when work the tea beverage that preparation is wanted.The user can buy complete tool set for the first time, when pouch uses up, only needs to buy tea admixture pouch and gets final product afterwards.Therefore this tea admixture pouch for example can provide separately with the form of the mixing single pouches of different admixtures, also can provide with tool set.The tea admixture also can and comprise suitable proportioning device such as spoon or soupspoon and provides with large quantities of (promptly in jar, container, parcel, big bags etc.).

In the use of described device and tool set, the tea admixture of the optimal level of scheduled volume is placed on the inboard of described hollow-cone stage body 34, rest described screen cloth 38 above, described hollow-cone stage body then rests on the glass 54.With described packing ring 36 or disk 36A be placed on described tea admixture above.Then with the boiling of predetermined/make described tea admixture wetting near the water of boiling, described boiling/near the aqueous dispersion of boiling is on packing ring/disk and flow through tea admixture piece.Described afterwards water is by screen cloth 38 and flow to glass 54, becomes tea concentrate.

This device and tool set are configured to make the user only need guarantee to provide the water of correct volume usually in described hollow-cone stage body 34.When the user from as kettle (being not the distributor that can control water), pour out water to as described in the hollow-cone stage body 34 time, described hollow-cone stage body 34 can provide clear and legible other inner marker with the indication volume.The operation instruction of described tool set can provide guidance for the proper volume of specific tea admixture and the specific tea concentrate of wanting concentration afterwards.

Although the block object with the form of packing ring or disk can be provided in the tool set easily, whether should the bulk object use then and can depend on multiple factor, these factors can comprise the kind of container, the kind of tea admixture and the form of employed filter.Disclosed described block object is packing ring 36 or disk 36A in Fig. 2-4.Yet as before described, this bulk object can adopt various ways, and therefore can will should introduce in the described filter assemblies by the bulk object.In other example, described block object can comprise disk smooth, atresia or plate, spheroid or block (as metal or pottery), also can be used as the fine screen cloth etc. of disperser.

Embodiment

The non-limiting example of said method below is provided.

Embodiment 1

Use the employing Tyler sieve series (promptly 20-24 hole) per square inch of 9 grams to record to have broken leaf to be of a size of 20-24 purpose pekoe tea dust and test, the quality of tea concentrate during with the water determining to seethe with excitement when use.Described pekoe tea dust is placed in the cone table filter of the outlet that has very fine screen cloth and have restriction.Use the water of teapot preparation boiling, and the water of boiling that will about 70ml is poured on directly on this pekoe tea dust, the extraction time is 20-25 second.Make the final penetrant that makes by filter, thereby from the pekoe tea dust, isolate, so that about 30ml to be provided the tea concentrate as final form.Tea concentrate by this method preparation has strong fragrance and does not have strong tannin bitter taste.

Embodiment 2

Use the employing Tyler sieve series of 10 grams to record to have broken leaf to be of a size of 20-24 purpose pekoe tea dust and test, with determine when use be derived from the espresso coffee machine outlet near the water that seethes with excitement the time tea concentrate quality.This pekoe tea dust is at first through grinding to reduce size, be placed on then in the conical filter with very fine screen cloth and the outlet with restriction.The water of approaching boiling is the free-pouring water from the hot water outlet of espresso coffee machine.The water near boiling of about 40ml directly is poured on the pekoe tea dust, and to make the extraction time be 25-30 second.Make the final penetrant that makes by filter, wherein said final penetrant is isolated from the pekoe tea dust, thereby the tea concentrate as final form is provided.Tea concentrate by this method preparation has strong fragrance and does not have strong tannin bitter taste.

Embodiment 3

The leaf admixture that uses the use Tyler sieve series of 10 grams to record to have broken leaf to be of a size of 18-20 purpose orange tea dust and roseleaf is tested, to determine the quality of tea concentrate when the use leaf admixture.This leaf admixture is placed in the conical strainer of the outlet that has very fine screen cloth and have restriction.With method similar to Example 1, use the water of teapot preparation boiling.The water of the boiling of about 70ml directly is poured on this admixture, and the extraction time is 30-40 second.Make the final penetrant that makes by filter, wherein said final penetrant is isolated from the leaf admixture, thereby about 40ml is provided the tea concentrate as final form.Similarly, the tea concentrate by this method preparation has strong fragrance and does not have strong tannin bitter taste.

Embodiment 4

Use the use Tyler sieve series of 90 grams to record to have broken leaf to be of a size of 20-24 purpose pekoe tea dust and test, to determine can be used for the follow-up quality of tea concentrate when being divided into many parts concentrate when preparing.This pekoe tea dust is placed in the conical strainer that has greater than employed screen cloth of embodiment 1-3 and the outlet with restriction.As described above, use the water of teapot preparation boiling.For boiling water is distributed on the pekoe tea dust fifty-fifty, at first makes water pass through form with diversion filter (course filter) and be placed on disperser on the tea material, and cause the water of about 300ml to flow directly on the pekoe tea dust.Making the extraction time is 100 seconds.The final penetrant that makes is isolated from the pekoe tea dust, thereby the tea concentrate as final form is provided.Similarly, this tea concentrate has strong fragrance and does not have strong tannin bitter taste.

Embodiment 5

Use the green tea of 10 grams to test, described green tea was in CG10 type electric coffee grinder Breville (trade mark is Housewares International Limited), ground under No.4 sets.Green tea through grinding is placed in the conical strainer of the outlet that has very fine screen cloth and have restriction.As described above, use the water of teapot preparation boiling.The water of the boiling of about 70ml directly is poured on this green tea through grinding.Making the extraction time is 30 seconds.The final penetrant that makes is isolated from this green tea through grinding, thereby about 40ml is provided the tea concentrate as final form.This tea concentrate has strong fragrance and does not have strong tannin bitter taste.

Embodiment 6

Use the green tea of 10 grams to test, described green tea in CG10 type Breville electric coffee grinder, under No.9 sets, ground, to make than used thicker tea material among the embodiment 5 through grinding.Similar to embodiment 5, the green tea through grinding is placed on the conical strainer of the outlet that has very fine screen cloth and have restriction.As described above, use the water of teapot preparation boiling.The water of the boiling of about 70ml directly is poured on this green tea through grinding.Making the extraction time is 25 seconds.The final penetrant that makes is isolated from this green tea through grinding, thereby about 40ml is provided the tea concentrate as final form.This tea concentrate has strong fragrance and does not have strong tannin bitter taste.

Embodiment 7

The leaf admixture that uses the use Tyler sieve series of 8 grams to record to have broken leaf to be of a size of 18-20 purpose India spices milk tea is tested, to determine the quality of tea concentrate when the use leaf admixture.This leaf admixture is placed in the cone table filter of the outlet that has very fine screen cloth and have restriction.With the packing ring of 8mm be placed on the leaf admixture above.Similar to embodiment 1, as to use the teapot preparation to seethe with excitement water.Respectively the water of the boiling of about 35ml directly is poured on this leaf admixture for twice, making total extraction time is 30-40 second.Moistening leaf admixture expands owing to having absorbed moisture, so the block object of the packing ring of this 8mm plays counterpoise and limit moistening leaf admixture obviously to expand.Make the final penetrant that makes by filter, and from the leaf admixture, isolate, thereby tea concentrate as final form is provided.Tea concentrate by this method preparation has strong fragrance and does not have strong tannin bitter taste.Add the milk bubble afterwards and slidingly suitablely take iron with tea pleasant to make to have.

Use said method, can prepare various tea beverage at short notice.Single cup of tea of standard can be by using the tea dust of 5 grams, slowly a certain amount of water is poured on the tealeaves that is arranged in empty appropriate filters, and flow in the cup to prepare filtered tea concentrate, mend full this cup with boiling water or near the water of boiling afterwards, thereby in about one minute, prepare.Similarly, if want the tea equivalent of Cappuccino, can be poured on by the water with 70ml on the loose tea dusts of 10 grams that are arranged in filter, milk (or soymilk) that will foam afterwards, full-cream or low fat is added in the concentrate in the cup, thereby makes.Iced tea can produce aforesaid concentrate by using the tealeaves of 10 grams, and this concentrate is poured in the kettle, and added cold water, ice cube, lemon and sweetener, thus preparation fast.In addition, Ice Milky Tea can be by making in the cold milk that concentrate is added to ice or does not have to ice.Even the hot tea of a kettle can directly be added to by water that will boiling on the concentrate that makes in advance in the kettle and preparation fast.

Therefore, this method provides the quick and effective method for preparing the strong tea concentrate that does not have the tannin bitter taste.This method allows a kind of connecing of retail shop while to prepare various different types of extract fragrance a kind ofly.Can produce whole order according to demand.For example, use this method, the shop can be prepared multiple tea kind easily, takes iron, Assam tea Cappuccino, Ceylon's tea to freeze that ice milk beverage, green tea India spices freeze drink etc. by iron, organic green-tea in drink, Darjeeling's iced tea, the Neil Ji as India's spices tea.

By preparing every part of fresh tea concentrate, can avoid degenerating or the variation of beverage quality of beverage.In addition, single part of tea-drinking need not use tea bag promptly can make, and has therefore reduced waste.Similarly, this method for retail shop or enterprise provides simply and easily method and require tailor-made teas beverage with preparation and sell various teas beverages according to consumer taste and supply.

This method also is fit to adopt existing equipment such as espresso coffee machine or boiling water disperser, thereby makes tea concentrate.

In the tea concentrate of describing a series of described methods, device, tool set and making, should be understood that they can also be with many embodied in other.

In appending claims and aforementioned specification, unless because representation language or necessary meaning and in context, have outside the requirement in addition, term " contains " or it changes language as " comprising " or " comprising " use is open understanding, promptly specify the existence of the feature of defined, do not have or add additional features and do not get rid of with various embodiments.

Claims (25)

1, a kind of preparation of single part of water-based tea concentrate, this method comprises the following steps:

(a) the discrete particles tea material that will be enough to produce the amount of single part of tea concentrate is put into filter;

(b) the tea material that directly will measure contacts with the water of capacity, to produce single part of tea concentrate, wherein controls following each parameter, thereby the amount that extracts and enter the tanning extract of described concentrate from this tea material is minimized:

The particle size of-tea material;

The time of contact of-tea material-water;

The temperature of-water;

(c) when single part of tea concentrate passes through filter, collect the water-based tea concentrate, thereby it is isolated from particle tea material.

2, method according to claim 1, wherein, described particle tea material comprises broken leaf, the end of the blade through grinding or their combination.

3, method according to claim 1 and 2, wherein, described particle tea material comprises tealeaves final stage tea.

4, method according to claim 1, wherein, described tea dust size is determined as the 18-24 order with the Tyler sieve series.

5, according to above any described method of claim, wherein, scope time of contact of described tea material-water is 15-60 second.

6, method according to claim 5, wherein, scope time of contact of described tea material-water is 20-30 second.

7, according to above any described method of claim, wherein, the time of contact of described tea material-water is along with the kind of the particle size of tea material and/or tea material and change.

8,, wherein, regulate the current of piling by the tea material by the flow velocity of filter, thereby make optimization time of contact of described tea material-water by control according to above any described method of claim.

9, method according to claim 8, wherein, described filter is to be used for screen mesh type filter tealeaves final stage tea, the about 2mm of mesh size.

10, according to above any described method of claim, wherein, the temperature of described water is for boiling or near boiling.

11, according to above any described method of claim, wherein, described water is under the atmospheric pressure.

12, according to above any described method of claim, wherein, step (a) comprises block object is placed on the described discrete particles tea material, the expansion thereby restriction tea material made progress when contact with water.

13, according to above any described method of claim, wherein, described water in step (b) before by disperser, thereby with this aqueous dispersion on described particle tea material.

14, according to above any described method of claim, wherein, described filter comprises cone table, is provided with filter screen in the narrow end of this cone table, in use, described loose tea granule material is placed on the contiguous place of screen cloth.

15, according to above any described method of claim, wherein, described method also is included in step (b) and before and/or afterwards one or more flavoring substances is added to step in the tea material.

16, a kind of device for preparing tea concentrate, this device comprises:

(a) filter, a certain amount of loose tea granule can be placed in this filter and contact with water, thereby produces the water-based concentrate, and described water-based concentrate is isolated from the tea material in this filter; With

(b) block object, this bulk object is placed on the discrete particles tea material, thus restriction is upwards expanded when discrete particles tea material directly contacts with water.

17, device according to claim 16, wherein, described block object is the disk with one or more through holes.

18, device according to claim 17, wherein, described block object is connected with described filter by the connector of flexible or rigidity, or separates with this filter, but has from the extended prolongation handle of this filter.

19, device according to claim 18, wherein, described rigid connector is connected with described filter, make described block body between non-use position and use location, to rotate, wherein at described non-use position, described block object does not disturb the position of tea material in described filter, and in described use location, described block body can limit discrete particles tea material and upwards expand.

20, according to any described device among the claim 16-19, wherein, described filter comprises the hollow-cone stage body that described discrete particles tea material can be placed on wherein, narrow end at described hollow-cone stage body is provided with filter screen, therefore in use, described discrete particles tea material is placed on the contiguous place of screen cloth.

21, device according to claim 20, wherein, mesh size is about 2mm.

22, adopt the tea concentrate of above any described method of claim or device preparation.

23, a kind of tool set for preparing tea concentrate, this tool set comprise the device described in any among the above claim 16-21, and following one of at least:

-be used for preparing the metrical instrument of the particle tea material of single part of tea concentrate according to the method described in any one of the claim 1-15; Perhaps

-be used for collecting when the described filter container of tea concentrate when described tea concentrate.

24, tool set according to claim 23, wherein, the metrical instrument of described at least a particle tea material is stored at least one corresponding parcel or the pouch, or is provided as the proportioning device of predetermined volumes.

25, according to claim 23 or 24 described tool sets, wherein, described container comprises cup or the glassware with the volume that is large enough to hold described tea concentrate at least.

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