KR20240029244A - Coffee undiluted extraction system that forms coffee powder in portafilter with uniform density - Google Patents

Abstract

The present invention is to obtain high quality espresso by distributing the coffee powder in the portafilter as evenly as possible using a distributor using the rotation of a plurality of pins, a vibrator using vibration, and a tamper capable of pressurizing with uniform pressure. Pertaining to a coffee concentrate extraction system, comprising: a coffee bean blending step for mixing coffee with different characteristics; A coffee bean grinding step of grinding coffee beans using a coffee bean grinder to produce coffee powder; A portafilter input step of placing coffee powder inside the portafilter; A tapping step of evenly dispersing the coffee powder by lightly tapping one side of the portafilter is performed, and the distributor is seated on the upper side of the portafilter and rotated to distribute the coffee powder at a uniform density by a plurality of pins inserted inside the portafilter. leveling step; A vibration step of vibrating a portafilter by seating it on the upper side of the vibration to fill the space formed by rotating a plurality of pins; A tamping step of pressurizing the coffee powder contained in the portafilter with a uniform pressure using a tamper; A coffee juice extraction system that forms the coffee powder of the portafilter at a uniform density, characterized in that the juice extraction step of extracting high quality espresso by supplying water to a portafilter filled with coffee powder at a uniform density is carried out sequentially. suggests something about
Therefore, the present invention processes the coffee powder filled in the portafilter so that it is evenly dispersed and maintains a uniform density by using a distributor, vibrator, and tamper in the leveling step, vibration step, and tamping step, respectively, to produce high-quality espresso in the undiluted solution extraction step. There is an effect that can be done. In addition, since the distributor, vibrator, and tamper are implemented through simple configuration and operation, manufacturing costs and product prices can be reduced, and it is easy to use and maintain, making it more economical.

Description

Coffee undiluted extraction system that forms coffee powder in portafilter with uniform density}

The present invention is a system for uniformly grinding roasted coffee beans with a grinder and placing them in a portafilter, then distributing the coffee powder evenly and adjusting it to a uniform density to extract coffee concentrate with higher concentration and extraction yield. Regarding this, more specifically, a distributor that rotates a plurality of pins to evenly distribute the coffee powder and level the upper surface, a vibrator that uniformly adjusts the density of the coffee powder by vibration, and a uniform pressure applied to the coffee powder. This relates to a coffee concentrate extraction system that can extract high-quality espresso by distributing the coffee powder put into the portafilter as evenly as possible using a tamper and maintaining a uniform density.

In general, coffee is a powder made by roasting and grinding the fruit of the coffee tree. It has a unique aroma and is widely used as a raw material for tea. Depending on the extraction method, such coffee can be roughly divided into drip coffee, which is extracted using a hand drip method, cold brew, which is extracted using a touch coffee method where it is steeped in cold water, and espresso, which is extracted using an espresso machine, etc. It can be.

This kind of coffee is extracted into drinkable coffee by adding water while it is contained in a filter (container) with a housing mounted on the inside. For example, known containers include the coffee powder tank of a Dutch coffee machine or the portafilter of an espresso machine.

In the prior art, when extracting espresso using a coffee machine that applies a pressure of 9 atmospheres, a tamping process is performed in which coffee powder is placed convexly upward in a portafilter and pressed with a tamper.

At this time, as more of the coffee powder contained in the center of the portafilter is compressed, there is a problem that the density of the coffee powder contained in the center of the portafilter increases compared to the coffee powder contained in the edge, and even if the coffee powder is placed flat in the portafilter, Due to uneven distribution, there is a problem of channeling, which means water flows into the pressed coffee toward the lower density side during the tamping process.

In particular, when a portafilter containing coffee that has completed the tamping process is mounted on an espresso machine and high-temperature, high-pressure water is applied, extraction is concentrated through the coffee flow path or the coffee at the edge where the density is relatively low, while the coffee at the center where the density is relatively high is concentrated. Coffee in areas without flow paths does not participate in extraction, causing the coffee to be wasted or the espresso components to be extracted weakly.

The present invention is intended to solve the above problems, and uses a distributor, a vibrator, and a tamper to uniformly disperse the coffee powder in the portafilter to extract high-quality espresso by dispersing the coffee powder in the portafilter with a uniform density. The purpose is to provide a coffee concentrate extraction system formed by.

In addition, another object of the present invention is to provide a coffee concentrate extraction system that forms coffee powder of a portafilter with a uniform density by improving the individual configurations of the distributor, vibrator, and tamper to make it easier to use and maintain. .

The coffee concentrate extraction system for forming coffee powder in a portafilter according to the present invention at a uniform density includes a coffee bean blending step of mixing coffee with different characteristics; A coffee bean grinding step of producing coffee powder by grinding coffee beans using a coffee bean grinder; A portafilter input step of putting coffee powder into the inner housing of the portafilter; A tapping step of evenly distributing the coffee powder by touching the portafilter with a hand or a device is performed, and the distributor is seated on the upper side of the portafilter and rotated to distribute the coffee powder at a uniform density by a plurality of pins inserted into the inside of the portafilter. leveling step; A vibration step of vibrating a portafilter by seating it on the upper side of the vibration to fill the space formed by rotating a plurality of pins; A tamping step of pressurizing the coffee powder contained in the portafilter with a uniform pressure using a tamper; Its technical feature is that the undiluted solution extraction step of extracting high-quality espresso by supplying water to a portafilter filled with coffee powder at a uniform density is carried out sequentially.

According to the coffee solution extraction system that forms the coffee powder of the portafilter at a uniform density according to the present invention, the coffee powder is added to the portafilter through the steps of an even distribution and leveling step by a distributor, a vibration step by a vibrator, and a tamping step by a tamper. By processing the filled coffee powder so that it is evenly dispersed and maintains a uniform density, it is effective in producing high-quality espresso in the undiluted solution extraction stage.

In addition, the improved structure of the distributor, vibrator, and tamper significantly improves stability in use, reduces manufacturing costs and product prices for each component, and makes it more economical because it is easy to use and maintain.

1 is a block diagram showing a coffee powder processing system according to the present invention;
Figure 2 is a perspective view of a distributor used in the leveling step of the present invention;
3 is a cross-sectional view showing another embodiment of the distributor;
Figure 4 is a front view of the vibrator used in the vibration step of the present invention;
Figure 5 is a perspective view showing the interior of the vibrator according to the present invention;
Figure 6 is a front view of the tamper used in the tamping step of the present invention.
7 is an exploded cross-sectional view showing another embodiment of the tamper according to the present invention;
8 is a photograph of a prototype according to the first embodiment of the tamper according to the present invention;
Figure 9 is a photograph of a prototype according to the second embodiment of the tamper according to the present invention.

Preferred embodiments of the present invention will be described in detail with the accompanying drawings.

The coffee concentrate extraction system that forms the coffee powder of the portafilter of the present invention at a uniform density processes coffee beans into coffee powder through a blending and grinding process, and maintains a uniform density of the coffee powder filled in the portafilter housing. This is a system for producing high-quality espresso when extracting the juice.

As a process for this, the present invention, as shown in Figure 1, includes a coffee bean blending step (S10), a coffee bean grinding step (S20), a portafilter input step (S30), a tapping step (S40), a leveling step (S50), and a vibration step ( S60), tamping step (S70), and undiluted solution extraction step (S80) are sequentially performed.

In the coffee bean blending step (S10), coffee with a new flavor is produced by mixing two or more types of coffee with different characteristics. The mixing ratio is varied depending on the origin, degree of roasting, processing method, and variety of the coffee beans to create a new taste and aroma. It is possible to make coffee with a balanced taste and aroma by appropriately combining the characteristics of each coffee bean.

In the coffee bean grinding step (S20), coffee powder of the desired size is manufactured by grinding the mixed coffee beans into powder using a manual or electric coffee bean grinder, and in the portafilter input step (S30), the ground coffee is ground. The powder is placed in the housing (fine perforated filter) inside the portafilter, and in the tapping step (S40), both sides and the bottom of the portafilter are lightly tapped by hand, so that the coffee powder is evenly distributed inside the housing. make it possible

The tapping refers to lightly tapping the side of the portafilter two or three times using your hand or the tamper handle to disperse the coffee powder concentrated in the center of the portafilter to the surrounding area.

At this time, if the tapping strength is too weak, the powder will not be dispersed well, and if the tapping strength is too strong, cracks may occur on the coffee surface or coffee powder may be lost to the outside of the portafilter, so it should be done just enough to distribute the powder evenly around the portafilter. Recently, there are many cases where this tapping action is omitted.

Meanwhile, in the leveling step (S50), the 'coffee uniform distribution tool' proposed by the applicant of the present application in Patent Publication No. 10-2174702 is used to ensure that the coffee powder filled inside the portafilter is evenly distributed inside the portafilter at a uniform density. do.

This coffee uniform distribution tool is an embodiment of the present invention and consists of a distributor 100 as shown in Figure 2, wherein the distributor 100 includes a holder 110; and a pin portion 120 provided on the bottom of the holder 110, wherein the pin portion 120 is inserted into the coffee through the upper opening of the container 10 and is connected to the holder 110. The coffee is uniformly distributed while rotating together, and the pin portion 120 includes a plurality of pins (P) provided on the bottom of the holder 110, and each pin (P) is the container. It has a length that is inserted to the bottom of the coffee contained in (10), and is positioned at different radii so that the rotation tracks do not overlap each other while rotating clockwise or counterclockwise based on the center of the bottom of the holder 110. It is composed.

The distributor 100 inserts a plurality of pins (P) into the coffee powder filled inside the portafilter and rotates the holder 110 so that the plurality of pins (P) evenly disperse the coffee powder to form a uniform density. I do it.

However, since the distributor 100 is configured with a plurality of pins P always protruding from the outside of the holder 110, safety is low and maintenance is difficult.

In another embodiment of the present invention to improve this, as shown in FIG. 3, when the distributor 100a is not normally used, a plurality of pins P are configured to remain inserted inside the holder 110a. It may be possible.

The distributor (100a) is coupled to the upper side of the holder (110a) so that a compression handle (130) can be raised and lowered, and a spring (131) is coupled to the inside of the compression handle (130) to always provide an upward elastic force. A lifting plate 140 configured to be lifted up and down together with a pressing handle 130 is inserted inside the holder 110a, and a plurality of pins P are coupled to the lifting plate 140.

The plurality of pins P are configured to protrude outward through holes formed in the lower plate 150.

Accordingly, when the user places the distributor (100a) on the coffee powder of the portafilter and compresses the compression handle (130), the lifting plate (140) and the plurality of pins (P) are lowered so that the pins (P) are connected to the lower plate. By protruding to the outside of (150), the coffee powder is inserted into the inside, and when the holder (110a) is then rotated, the plurality of pins (P) rotate to evenly distribute the coffee powder.

And when the compression handle 130 is decompressed, the lifting plate 140 rises and is spaced apart from the lower plate 150, thereby inserting the pin P into the inside of the holder 110a, which has the effect of making maintenance easier. there is.

In the vibration step (S60), a plurality of pins (P) of the distributor (100) (100a) are inserted into the coffee powder and rotated using the vibrator 200 as shown in FIGS. 4 and 5, and are formed at the rotation portion. Uniform density is formed by filling the space with strong vibration.

The vibrator 200 connects the switch 240 by lowering the upper cover 220 coupled to the upper side of the body 210 due to the load of the portafilter (PF), and thus connects the switch 240 to the inside of the battery housing 230. The vibration motor 250 supplied with power from the coupled battery operates to vibrate the vibrating weight 260 connected to the upper rod, thereby applying strong vibration to the portafilter PF mounted on the upper cover 220.

A ring-shaped vibration absorption pad is coupled to the lower side of the vibrator 200 to absorb vibration, and after forming a uniform density by vibration, the user lifts the portafilter (PF) and covers the upper cover 220. By separating from , the upper cover 220 rises due to the elastic force of the switch 240 and becomes in the off state.

Therefore, the vibrator 200 of the present invention applies strong vibration to the portafilter (PF) containing the coffee powder using the vibration motor 250 and the vibrating weight 260 to quickly fill the space formed in the coffee powder to achieve uniform density. This makes it possible to produce high-quality espresso through the subsequent tamping and extraction processes.

In the tamping step (S70), the coffee powder is compressed using Patent Registration No. 10-2174701, 'Tamper for Porta Filter' proposed by the applicant of the present application.

If the level is wrong during tamping, under-extraction occurs on the side where the slope is lower, and a bitter and thin espresso is extracted, so it is important to tamper in a level manner.

Additionally, the water penetration time can be varied depending on the intensity of tamping. If the tamping is light, it penetrates quickly, and if it is strong, it penetrates slowly and a richer flavor is extracted. At this time, the strength of the tapping may also vary depending on the input amount and the size of the grinding particles. If the input amount is small or the particles are large, strong tamping is advantageous. .

As shown in FIG. 6, the tamper 300 for this portafilter includes a tamper body 310; And a contact surface 320 forming the bottom of the tamper body 310, wherein the contact surface 320 includes a coffee contact portion 321 directly in contact with the coffee; and a filter contact part 322 in contact with the upper edge of the portafilter, wherein the coffee contact part 321 and the filter contact part 322 are connected through a concave curved section, and the coffee contact part 321 is connected to the filter. It has a shape that protrudes more toward the coffee than the contact portion 322, and the coffee contact portion 321 has a convex shape toward the coffee, and the coffee contact portion 321 and the filter contact portion 322 are formed as one body. The tamper body 310 has a structure separated into an upper body 311 and a lower body 312, and the lower body 312 is detachable from the upper body 311 by a bolt fastening method. It consists of a fastened structure.

This tamper 300 can pressurize the coffee powder contained in the portafilter with a uniform pressure so that the overall density is as uniform as possible, and the coffee powder processing system that sequentially passes the above-described steps performs the final step, the concentrate extraction step (S80). High-quality espresso can be extracted by supplying cold or hot water to a portafilter filled with coffee powder at a uniform density.

Meanwhile, in the present invention, in order to prevent displacement of the pressure applied to the coffee powder by the user's force, a tamper 300a of a new structure as shown in FIG. 7 is proposed as another embodiment of the present invention.

The tamper (300a) includes a tamper body (310a) composed of an upper body (311a) and a lower body (312a), and a pressing block (330) that moves up and down inside the lower body (312a). .

Since the height of the compression block 330 inserted into the guide portion 315 formed on the lower side of the lower body 312a is adjusted by rotation of the compression block 330, the compression block 330 is provided on the lower side of the lower body 312a. Since the pressing block 330 presses the coffee powder while the first step 317 is seated on the second step 11 provided on the upper part of the portafilter 10, the coffee powder is pressed inside the portafilter 10. It is possible to always apply constant pressure to the inserted coffee powder (1).

For this purpose, the tamper 300a forms a nut portion 313 on the lower side of the upper body 311a, and a penetrating portion 314 and a guide portion 315 on the inner side of the lower body 312a. A nut portion 316 is formed between the portion 314 and the guide portion 315, and a bolt portion 332 coupled to the pressing block 330 by a fixing bolt 331 is formed.

In addition, when the bolt portion 331 of the compression block 330 is screwed to the nut portion 316 of the lower body 312a, the compression block 330 is inserted into the guide portion 315, and the bolt portion 332 ) protrudes into the through portion 314, and the nut portion 313 of the upper body 311a is screwed to the bolt portion 331.

Accordingly, the pressing block 330 moves up and down inside the guide portion 315 by rotation, and accordingly, the height of the pressing block 330 inserted into the portafilter 10 is arbitrarily adjusted to suit the needs of each user. Regardless of force, constant pressure can always be applied.

In particular, in the first embodiment of the prototype of the tamper of the present invention, as shown in FIG. 8, the outer peripheral surface of the pressing block 330 is marked with a scale at height differences to enable stepwise height adjustment while visually recognizing it. do.

As a second embodiment of the prototype tamper of the present invention, the tamper 300a of FIG. 8 can be simplified and replaced with the tamper 300b of FIG. 9.

That is, the tamper (300b) includes a tamper body (310b) composed of an upper body (311b) and a lower body (312b), and a pressing block (330a) that moves up and down inside the lower body (312b). And the basic configuration is the same as Figures 7 and 8.

Accordingly, the handle formed on the upper side of the tamper 300b is omitted, thereby minimizing the size of the upper body 311b and reducing the weight, thereby improving convenience of operation.

The coffee concentrate extraction system for forming the coffee powder of the portafilter of the present invention configured as described above at a uniform density includes a distributor (100) (100a) in the leveling step (S50), the vibration step (S60), and the tamping step (S70), respectively. The vibrator 200 and the tamper 300 (300a) are used to process the coffee powder filled in the portafilter so that it is evenly dispersed and maintains a uniform density, thereby changing the taste of the espresso previously in the undiluted solution extraction step (S80). Because the variables are controlled, it is effective in producing consistent, high-quality espresso no matter who extracts it.

In addition, since the distributor (100) (100a), vibrator (200), and tamper (300) (300a) are implemented through simple configuration and operation, manufacturing costs and product prices can be reduced, and they are easier to use and maintain. It has an economic effect.

1: Coffee Powder 10: Porta Filter
11: 2nd step
100, 100a: Distributor 110, 110a: Holder
130: Compression handle 131: Spring
140: Elevating plate 150: Lower plate
200: Vibrator 210: Body
220: upper cover 230: battery housing
240: switch 250: vibration motor
260: Vibrating weight 300, 300a, 300b: Tamper
310, 310a, 300b: Tamper body 311, 311a, 311b: Upper body
312, 312a, 312b: lower body 313, 316: nut portion
314: Penetrating part 315: Guide part
317: 1st step 330: Compression block
331: fixing bolt 332: bolt part

Claims (12)

A coffee bean blending step (S10) of mixing coffee with different characteristics; A coffee bean grinding step (S20) of producing coffee powder by grinding coffee beans using a coffee bean grinder; A portafilter input step (S30) of placing coffee powder inside the portafilter; A tapping step (S40) of lightly touching one side of the portafilter to evenly distribute the coffee powder is performed,
A leveling step (S50) of seating the distributor (100) (100a) on the upper side of the portafilter and rotating it to distribute the coffee powder at a uniform density by a plurality of pins (P) inserted inside the portafilter;
A vibration step (S60) of vibrating the portafilter by seating it on the upper side of the vibration 200 to fill the space formed by rotating the plurality of pins (P);
A tamping step (S70) of pressurizing the coffee powder contained in the portafilter with a uniform pressure by the tamper (300) (300a);
A liquid extraction step (S80) in which high-quality espresso is extracted by supplying water to a portafilter filled with coffee powder at a uniform density;
A coffee concentrate extraction system that forms coffee powder in a portafilter at a uniform density, characterized in that it proceeds sequentially.
According to clause 1,
In the leveling step (S50), the plurality of pins (P) coupled to the distributor (100) (100a) are positioned at different radii so that the rotation tracks do not overlap each other while rotating clockwise or counterclockwise. A coffee extract extraction system that forms the coffee powder in the portafilter to a uniform density.
According to clause 1,
In the leveling step (S50), the pin (P) of the distributor (100) is coupled so as to protrude to the lower side of the holder (110). A coffee concentrate extraction system that forms the coffee powder of the portafilter at a uniform density.
According to clause 1,
In the leveling step (S50), a compression handle 130 configured to be raised and lowered by the elastic force of the spring 131 is coupled to the upper side of the holder 110a, and the compression handle 130 is attached to the inside of the holder 110a. A lifting plate 140 that goes up and down together with the handle 130 is coupled, and a plurality of pins (P) that protrude or are inserted to the outside through holes formed in the lower plate 150 are coupled to the lifting plate 140. A coffee concentrate extraction system that forms coffee powder in a portafilter with a uniform density.
According to clause 1,
The vibrator 200 in the vibration step (S60) is coupled to the upper side of the body 210 so that the upper cover 220 can be raised and lowered, and the upper cover 220 is moved by the vibration motor 250 by the load of the portafilter. A coffee concentrate extraction system that forms coffee powder in a portafilter at a uniform density, characterized in that it is configured to operate.
According to clause 5,
A coffee concentrate extraction system that forms the coffee powder of the portafilter at a uniform density, characterized in that a vibrating weight 260 is connected to the upper side of the vibration motor 250 to amplify and transmit vibration to the portafilter.
According to clause 1,
A coffee concentrate extraction system that forms the coffee powder of a portafilter at a uniform density, characterized in that the vibrator 200 of the vibration step (S60) is formed with a battery housing 230 so that it can be operated by a replaceable battery. .
According to clause 1,
A coffee concentrate extraction system for forming the coffee powder of a portafilter at a uniform density, characterized in that the vibrator 200 of the vibration step (S60) is coupled with a ring-shaped vibration absorption pad to absorb vibration.
According to clause 1,
The tamper 300 of the tamping step (S70) includes a contact surface 320 forming the bottom of the tamper body 310, and the contact surface 320 is a coffee contact portion 321 in direct contact with the coffee and the upper edge of the portafilter. A coffee concentrate extraction system for forming coffee powder of a portafilter with a uniform density, characterized in that it consists of a filter contact portion (322) in contact with the.
According to clause 9,
A coffee concentrate extraction system for forming coffee powder of a portafilter at a uniform density, wherein the coffee contact portion 321 protrudes beyond the filter contact portion 322.
According to clause 1,
The tamper 300a of the tamping step (S70) includes a tamper body 310a composed of an upper body 311a and a lower body 312a, and a pressing block 330 that rises up and down inside the lower body 312a. ) and consists of,
The first step 317 provided on the lower side of the lower body 312a is seated on the second step 11 provided on the upper side of the portafilter 10,
By rotating the pressing block 330, the height of the pressing block 330 inserted into the guide portion 315 formed on the lower side of the lower body 312a is adjusted to adjust the coffee powder (1) inserted into the portafilter 10. ) A coffee concentrate extraction system that forms coffee powder in a portafilter with a uniform density, characterized by applying a certain pressure to the portafilter.
According to clause 11,
A nut portion 313 is formed in the upper body 311a, and the nut portion 313 is inserted into a penetration portion 314 formed in the lower body 312a. The penetration portion 314 is formed in the lower body 312a. ) and a nut portion 316 is formed between the guide portion 315,
A coffee concentrate extraction system for forming the coffee powder of a portafilter at a uniform density, characterized in that the bolt parts 332 coupled to the pressing block 330 are sequentially screwed to the nut parts 316 and 313.

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