JPH10194338A - Beverage extraction bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save the resources of the packaging material, and to easily, rapidly and densely extract the beverage with excellent balance of flavor by gradually moving the raw material to be extracted at the filling part during the extraction to a non-filling part, and setting the ratio of the length of a bag body in the vertical direction after the extraction to the length before the extraction to be the prescribed value. SOLUTION: A beverage extraction bag is formed of the filter material, and provided with a bag body 1 in which the raw material to extract the beverage is filled and a handle 2. The bag body 1 before the extraction is classified into a filling part in which the raw material to be extracted is filled and a non-filling part in which no raw material is substantially filled by bending the bag body 1. During the extraction of the beverage extraction bag 1, the raw material to be extracted at the filling part is gradually moved, and the length in the vertical direction of the bag body after extraction is 120-200% of the length before the extraction by the development of a bending part. The beverage with excellent balance of flavor can be easily, rapidly and densely extracted, and the resources of the packaging material can be saved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage extraction bag, and more particularly to a method for compactly storing an extraction raw material such as tea, cereals, and ground coffee beans to save resources of packaging materials. The present invention relates to a beverage extraction bag that is easy to extract and can extract a high-quality beverage in a short time and by utilizing the original flavor of the extraction material.

[0002]

2. Description of the Related Art Drinks are indispensable for human life as foods intended to replenish water. In recent years, health drinks and herbal medicines have been increasingly used as taste drinks to enjoy aroma and taste. It is also important as a drinkable food derived from foods and natural products, and various ways of drinking it have been devised. In recent years, in particular, with the consumer orientation of easy and convenient, it can be carried anywhere and can be prepared immediately with hot water and a cup, and the number of beverage extraction bags in the form of bags has rapidly increased, not only tea but green tea, Its application range is expanding to oolong tea and herbal tea.

[0003]

However, at present,
Beverage extraction bags widely distributed in the market are mainly intended for ease of use, and have problems from the viewpoint of resource saving of packaging materials and miniaturization of packaging packs. That is, the beverage extraction bag is currently packaged in a packaging pack larger than the size of the used extraction bag regardless of the amount of the beverage extraction raw material as the content. Also,
The conventional beverage extraction bag also has a problem in that it can be adjusted to the desired concentration quickly to obtain a beverage utilizing the flavor and taste of the beverage extraction material itself.

[0004] For example, in an example of a beverage extraction bag in which the beverage extraction raw material is tea leaves (the amount of tea leaf filling is 2 g), the size of the used extraction bag is 65 mm in length and 40 mm in width, whereas the beverage extraction bag is 65 mm in length and 40 mm in width. The size of the non-seal space of the aluminum vapor-deposited sheet pack (hereinafter, referred to as the space size of the pack) was 71 mm in length and 55 mm in width. Also, the tea obtained by this beverage extraction bag,
It lacked the original flavor of tea and the balance between color and flavor, and was inferior to that put in a teapot or tea pot. Further, in an example of a beverage extraction bag (filled amount of coffee ground beans: 7 g) filled with a beverage extraction raw material containing a large amount of fine powder derived from its contents such as ground coffee beans, herbal medicines, and roasted cereals, etc. While the size of the subsequent extraction bag was 90 mm in length and 57 mm in width, the space size of the aluminum vapor-deposited sheet pack for packaging the beverage extraction bag was 101 mm in length and 92 mm in width. In addition, in this beverage extraction bag, the extraction component was poorly extracted, and it was not possible to extract a beverage having the desired thickness and flavor in a short time.

[0005] In order to solve the above-mentioned problems related to the extraction, there are known tea beverages in which a finely ground tea leaf is added or a bag material such as a nylon mesh is used as a drainage material. However, in such a beverage extraction bag, a lot of finely pulverized tea leaves and tea leaves leak into the extract through the bag, causing problems such as deterioration of the appearance of the extract and deterioration of the throat passing over. doing. Also,
For beverages using ground coffee beans, herbal medicines, roasted cereals, and the like, a method is known in which strong roasting enhances the browning sensation, and causes the color and aroma of the extract to be darkened quickly. However, according to this method, the difference between the taste expected from the color and the aroma of the extract and the actual taste is rather large. As described above, the conventional beverage extraction bag leaves an essential problem that it does not meet the expectations of drinkers who want to easily obtain a beverage having the same flavor and taste as when put in a teapot or teapot. It is. Further, no technique has been found for improving the beverage extraction bag from the viewpoint of saving resources of the packaging material in a compact packaging form.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the conventional beverage extraction bag, and an object of the present invention is to reduce the resources of packaging materials in a compact packaging form. It is another object of the present invention to provide a beverage extraction bag capable of easily and quickly extracting a well-balanced beverage with a good flavor.

[0007]

Means for Solving the Problems The present inventors have made intensive studies to solve the above-mentioned problems, and can make the beverage extraction bag into a compact packaging form to save the resources of the packaging material. In addition, a bag form capable of easily and quickly extracting a beverage having a good balance of flavor from a beverage extraction raw material was examined. In the conventional beverage extraction bag, the reason that the beverage with a good flavor balance was not extracted quickly and densely from the beverage extraction raw material was that the extraction raw material filled in the bag settled due to its own weight during the extraction operation and agglomerated, Therefore, it was found that extraction was insufficient because the surface area of the beverage extraction raw material in the bag was reduced. As a means for easily and quickly extracting a beverage having a good flavor balance from a beverage extraction raw material, at the time of a beverage extraction operation, a space in which the beverage extraction raw material can move in the space inside the extraction bag is secured. It has been found that it is necessary to provide an environment where the extraction solvent is easy to contact, and the present inventors have proposed means for preventing agglomeration of the beverage extraction raw material during beverage extraction and securing a wide surface area of the beverage extraction raw material. Studied. As a result, it has been found that the above problem can be solved by providing a filling portion of the beverage extracting raw material and a non-filling portion as a moving portion of the raw material during the extracting operation in the beverage extracting bag.

Further, by providing the unfilled portion, it is easy to bend the bag main body, and the vertical length of the bag main body after the extraction operation is larger than the length before the extraction operation. By solving the problem of the resource saving of the packaging material without losing the above-mentioned effect that the beverage having a good flavor balance can be easily and quickly extracted by adopting a form having a specific length. The inventors have found that the present invention can be performed, and have completed the present invention.

[0009] That is, the invention according to claim 1 is a beverage extraction bag comprising a bag body formed of a filter material and filled with a beverage extraction raw material, and a hanging member attached to the bag body. In addition, the bag body before the extraction operation is divided into a filling portion of the extraction raw material and a non-filling portion of the extraction raw material that is not substantially filled with the extraction raw material. The bag body is gradually moved to the filling site, and the vertical length of the bag body after the extraction operation is set to be 120% to 200% of the length before the extraction operation. The above object has been achieved by providing a beverage extraction bag.

[0010] According to a second aspect of the present invention, in the first aspect of the present invention, the beverage extraction bag is divided into the filling portion and the non-filling portion by bending the bag body. To provide.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the bag body has both ends of a tubular member joined and a bottom portion of the tubular member folded in a center. The present invention provides a beverage extraction bag which is in a form, and is divided into the above-mentioned filled portion and the above-mentioned non-filled portion by the center folding.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the bag body has a bent portion at the non-filled portion, and has a shape of an envelope after the extraction operation. Is provided.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a beverage extraction bag according to the present invention will be described below with reference to the drawings. Figures 1-4
1 shows a beverage extraction bag of the present embodiment, FIG. 1 is a perspective view when not in use, FIG. 2 is a perspective view in an early stage of use, FIG. 3 is a perspective view in a late stage of use, and FIG. It is a side view in a) and after use (b).

As shown in FIGS. 1 and 2, the beverage extraction bag of the present embodiment is formed of a filter material, and is filled with a beverage extraction raw material, and a hanging body attached to the bag body 1. And a rod-shaped handle 2 as a holding member. Incidentally, reference numeral 21 in the figure denotes a locking portion which can be locked to, for example, the edge of the container. The bag body 1 before the extraction operation is formed by bending the bag body 1 as shown in FIG. 1 so that the extraction portion filled with the extraction material and the extraction material not substantially filled with the extraction material. And a non-filled portion. In addition, during the extraction operation of the beverage extraction bag 1, the extraction raw material at the filling site gradually moves to the non-filling site, and the vertical length b of the bag body after the extraction operation As shown in FIG. 4, as the bent portion expands, 120% to 2% of the length before the extraction operation
00%.

The beverage extraction bag of the present embodiment will be described in more detail. The bag body 1 is made of a sheet to which hemp, pulp or a heat-sealing resin is added, or a sheet of synthetic fiber such as polypropylene by a melt blow method or the like. The bag body 1 is formed by temporarily forming the above-mentioned sheet into a tubular shape, and joining both ends of a tubular member (a tubular member), and a bottom portion of the tubular member as shown in FIG. A center fold 11 is formed. The center folded portion 11 has bent portions 12a, 12a located at both ends thereof and a bent portion 12b located at the center thereof.
Are divided into bent portions 12a, 12a, which are filled with the extracted raw material and filled with the extracted raw material, and which are not filled with the extracted raw material.
That is, as shown in FIG. 1, both sides of the center fold 11 are filled with the extracted material, and the center fold 11 is substantially not filled with the extracted material.

Before the extraction operation, the center fold 11
Is in a state of being sandwiched between filling portions of the extraction raw material located on both sides thereof. However, as shown in FIG. 5, when the bag main body 1 is shaken up and down by the handle 2 by being put in hot water, the center folded portion, which was initially held down by the portion filled with the extraction raw material, As shown in FIG. 2 or FIG. 3, 11 gradually projects downward due to the shaking, the weight of the extracted raw material, and the like. For this reason, a space is created between the opposed inner surfaces, and the beverage is extracted not only from the outer surface but also from the inner surface.

When the middle fold 11 protrudes downward, the extracted raw material in the filling portion, the movement of which is restricted by the folds 12a, 12a, gradually passes through the folds 12a, 12a. Then, it moves into the center folding portion 11. Since the raw material to be extracted was not substantially contained in the middle folding part 11 at the initial stage of extraction, the extracted raw material moved to the middle folding part 11 was sufficiently stirred in the middle folding part 11, and hot water as an extraction solvent was used. Thus, the beverage components are efficiently extracted. Further, the extraction from the center folding portion 11 is not easily affected by clogging of the sheet due to the extraction raw material, and the extraction is performed well even when a beverage extraction raw material that easily causes clogging is used.

As shown in FIG. 4 (b), after the extraction operation, the center folded portion 11 projects completely downward as shown in FIG. 4 (b), and the folded portions 12a, 12a at both ends of the center folded portion 11 are provided. Is fully extended. Vertical length b of the bag body after the extraction operation
Is 120% to 200% of the vertical length a before the extraction operation.
%. If this ratio is less than 120%, a space in which the extraction raw material moved to the non-filled portion can freely move is not sufficiently secured, and the extraction tends to be insufficient. On the other hand, if the above ratio exceeds 200%, the extraction itself is performed well, but inconveniences such as inconvenient handling of the used beverage extraction bag occur.

In the beverage extraction bag of the present embodiment,
As described above, the center fold 11 protrudes downward during the extraction operation, and the inside thereof also becomes a space related to the extraction, so that a sufficient space for extraction is secured during the extraction operation. On the other hand, the bag main body 1 before the extraction operation is in a state in which the center folded portion 11 is sandwiched between filling portions located on both sides thereof, and has a compact form. Therefore, according to the beverage extraction bag of the present embodiment, it is possible to easily and quickly extract a beverage having a good balance of flavor and to use a compact packaging form before use to save resources of the packaging material. it can. In addition, it is also possible to reduce the size of the packaging pack by adopting a compact packaging form, thereby improving the portability, thereby meeting the needs of consumers who want to easily prepare beverages. .

As a packaging material of the beverage extraction bag, an aluminum laminate or an aluminum vapor-deposited sheet can be used. The beverage extraction bag of the present embodiment has a compact packaging form in a packaging pack formed by the sheet. Are stored one by one. It is preferable that the inside of the packaging pack is replaced with nitrogen or an antioxidant is placed inside, so that deterioration of the extraction raw material due to oxidation can be suppressed. In addition, a plurality of beverage extraction bags can be put together in a container such as a can with a lid. In this case, the beverage extraction bags may be put as they are or one by one in a packaging pack, and these may be put in the container. . Also in this case, long-term storage is possible by putting an antioxidant or a desiccant in the container.

In the present invention, the extraction raw material for extracting the beverage to be filled into the bag body is not particularly limited as long as the beverage can be given by stirring in hot water or water. Teas such as brown rice tea, oolong tea, herb tea, Chinese herbs and other natural products, ground coffee beans, roasted cereals and the like can be used.

As the filter material for forming the bag body, a sheet made of any fiber such as natural fibers such as hemp, cotton and pulp, and synthetic fibers such as polypropylene, polyethylene, polyethylene terephthalate, nylon and rayon. The sheet may be used, and the sheet may be manufactured by any manufacturing method. Furthermore, the sheets constituting the bag body 1 can be bonded by heat sealing, bonding with an adhesive, sewing with a sewing machine, or caulking.

As the above-mentioned hanging member, a rod-shaped handle 2 is employed as in the above-mentioned embodiment, which may be attached to the center of the upper end of the bag body, or a thread or string or a plastic strip may be used. It may be a hanging member. The length of the hanging member at the time of the extraction operation is preferably at least 50 mm or more to prevent heat from boiling water at the time of extraction, and as a method of attaching the hanging member to the bag body,
Although it depends on the compatibility of the two materials, for example, heat sealing, bonding with an adhesive, sewing with a sewing machine or caulking bonding, or the like can be performed, and further, a compact one can be attached by bending a suspension member or the like. .

Next, a beverage extraction bag according to another embodiment of the present invention will be described with reference to FIG. FIG. 6 shows a beverage extraction bag according to another embodiment of the present invention. FIG. 6 (a) is a side view when not in use, and FIG. 6 (b).
Is a side view after use.

The beverage extraction bag of the present embodiment includes a bag body 1 formed of a filter material and filled with a beverage extraction material, and a rod-shaped handle 2 as a hanging member attached to the bag body 1. In that the bag body is made of a sheet of synthetic fibers such as hemp, pulp or a sheet to which a heat-sealing resin is added or polypropylene by a melt blow method or the like, as in the above-described embodiment. is there.

The bag body 1 in this embodiment has an envelope shape after use, but before use, the envelope-shaped member is bent at the center, and is lower than the bent portion 12a at the center. And a plurality of bent portions 12
b, 12b can be formed. In the present embodiment, the bag body is divided by the central bent portion 12a into a filling portion of the extraction raw material filled with the extraction raw material and a non-filling portion of the extraction raw material substantially not filled with the extraction raw material. I have. That is, the portion above the bent portion 12a of the bag body 1 is filled with the extraction raw material, and the portion below the bent portion 12a is substantially not filled with the extraction raw material.

Before the extraction operation, as shown in FIG. 6A, the portion below the bent portion 12a is
Folded by the plurality of bent portions 12b,
They are in close contact with the surface of the bag body at a portion above the bent portion 12a. When the bag body 1 is placed in boiling water as shown in FIG. 5 and the bag body 1 is shaken up and down by the handle 2, as shown in FIG. The portion below the folded portion 12a that has been stretched extends, and the beverage extraction raw material in the filling portion is sequentially turned into the bent portion 12a, 1
It gradually moves downward through each of 2b and 12b.

In the beverage extraction bag of the present embodiment,
In the initial stage of extraction, since the extraction raw material was not substantially contained in the portion below the bent portion 12a, the extraction raw material moved to the lower portion was sufficiently extracted with the extraction solvent in the lower portion. It comes into contact with certain hot water or the like, so that the beverage component is efficiently extracted. Further, similarly to the above-described embodiment, even when a beverage extraction raw material that easily causes clogging is used, extraction is performed well. In this way, the beverage component is finally extracted from the entire surface of the bag body 1.

The bag body 1 after the extraction operation is
As shown in FIG. 6B, the bent portions 12a and 12a
b and 12b are fully extended, and the vertical length b of the bag body after the extraction operation is 120% to 200% of the vertical length a before the extraction operation. ing. If this ratio is less than 120%, a space in which the extraction raw material moved to the non-filled portion can freely move is not sufficiently secured, and the extraction tends to be insufficient. On the other hand, when the above ratio is 20
If the amount exceeds 0%, the extraction itself is performed well, but inconveniences such as inconvenient handling of the used beverage extraction bag occur.

In the beverage extraction bag of the present embodiment,
While a sufficient space for extraction is secured during the extraction operation, the configuration before the extraction operation is an extremely compact configuration as shown in FIG. Therefore, according to the beverage extraction bag of the present embodiment, it is possible to easily and quickly extract a beverage having a good balance of flavor and to use a compact packaging form before use to save resources of the packaging material. it can.

The present invention is not limited in any way by the above-described embodiment, and can be implemented with appropriate modifications without departing from the spirit of the present invention. For example, the center fold 1
In the above-described embodiment in which No. 1 is formed, instead of forming such a fold at a portion sandwiched between the filling portions of the extraction raw material, a fold portion is formed outside so as to be in close contact with the outer surface of one of the filling portions. You may. That is, in the present application, the bag body has a form in which both ends of the tubular member are joined and the bottom of the tubular member is folded out, and the outer folded portion separates the filled portion and the non-filled portion. A beverage extraction bag according to claim 1 or 2 is also provided. Further, in the above embodiment, the bag body 1 is made of one type of filter material. However, a plurality of types of filter materials may be combined. In this case, filter materials having different air permeability depending on portions of the bag body 1 are used. Can be used to control the extraction of beverage components. Other points can be appropriately changed without departing from the spirit of the present invention.

[0032]

Next, an embodiment of the beverage extraction bag of the present invention will be described. Tasting evaluation was performed for this example and the comparative example. When the extraction raw material is coffee, the appearance size of the beverage extraction bag before the extraction operation is 50 mm in length and 50 mm in width, and the size of the packaging pack is 60 in both examples and comparative examples.
mm width 60 mm. In addition, when the extraction material is brown rice tea, the exterior size of the beverage extraction bag before the extraction operation is 50 mm in length.
mm width 40 mm, the size of the packaging pack is length 60 mm and width 50 mm
It became.

At the time of tasting evaluation, 100 ml of hot water (83 ° C.) is poured into a cup of D-130JW manufactured by Promax Industries, and the bag body of the beverage extraction bag is immersed in hot water while holding the hand and shaken up and down (shaking). The content beverage was extracted by performing a reciprocation once a second at a width of 20 mm to 30 mm per second).

[Examples 1 to 7] For Examples 1 to 4, a cylindrical beverage extraction bag having a center folded portion as shown in FIG. 1 was used. For Examples 5 to 7, FIG. A beverage extraction bag having an envelope-like shape after the extraction operation as shown was used. The vertical shaking time of the extraction operation is 2 minutes, the vertical length a of the bag body before the extraction operation is 50 mm,
The length b, the number of times of folding, and the amount of raw material to be extracted after the extraction operation were changed as shown in [Table 1]. In each of the embodiments, the bag body was formed using a composite sheet of hemp, pulp and heat-welded fibers (11259 manufactured by Dexter), and the extraction raw material filled in the bag body was coffee (M
A commercial product of regular coffee can (manufactured by JB) was used.
In addition, about Examples 1-4, the said extraction raw material was filled by half amount from both ends of the bag main body 1.

[Comparative Examples 1 to 6] In Comparative Examples 1 to 6 for comparison with the above Examples 1 to 7, is the bag body not provided with the above-described center folded portion (Comparative Example 1)? A cylindrical body having a small center fold such that the vertical length b of the bag body after the extraction operation is less than 120% of the vertical length a before the extraction operation (Comparative Examples 2 and 3) )so,
The amount of the extraction raw material to be filled is changed as shown in [Table 1]. Further, in Comparative Examples 4 to 6, the bag body after extraction was a simple bag body, and the amount of the extracted raw material to be filled was changed as shown in [Table 1].
In the comparative example, the length a of the bag body in the vertical direction before the extraction operation was 50 mm in both cases, and the method of filling the extraction raw material was the same as that in the example.

[Examples 8 to 12] In Examples 8 to 10, a cylindrical beverage extraction bag having a center folded portion as shown in FIG. 1 was used, and in Examples 11 and 12, FIG. A beverage extraction bag having an envelope-like shape after the extraction operation as shown was used. In each of Examples 8 to 12, the up-and-down shaking time of the extraction operation was set to 20 seconds, the vertical length a of the bag body before the extraction operation was 50 mm, and the length b after the extraction operation. The number of times of folding is changed as shown in [Table 2]. In each of the examples, the bag body was made of a composite sheet of hemp, pulp and heat-welded fiber (1118 manufactured by Dexter).
9), and 2 g of a commercial product of Genmaicha (manufactured by ITO EN Co., Ltd.) was used as an extraction raw material to be filled in the bag body. In addition, about Examples 8-10, the said extraction raw material was filled by half amount from both ends of the bag main body 1.

[Comparative Examples 8 to 10] Comparative Examples 7 to 10 for comparison with the above Examples 8 to 12 when the raw material of the extract was brown rice tea
No. 10 indicates that the above-described center fold is not formed on the bag body (Comparative Example 7), or the vertical length b of the bag body after the extraction operation is the vertical length before the extraction operation. This is a cylindrical member having a small center fold (less than 120% of a) (Comparative Example 8), and is changed as shown in [Table 2]. Further, Comparative Examples 9 and 10 for comparison with Examples 11 and 12 described above were different from those in which the bag body was a simple bag-shaped body and the bag was not folded (Comparative Example 9).
Although the filling portion of the raw material and the specific filling portion are separated by folding, the vertical length b of the bag body after the extraction operation is less than 120% of the vertical length a before the extraction operation ( Comparative Example 10) is changed as shown in [Table 2]. In the comparative example, the length a of the bag body in the vertical direction before the extraction operation was 50 mm in both cases, and the method of filling the extraction raw material was the same as that in the example.

<Tasting Evaluation> The tasting evaluation was carried out for each of the coffee and brown rice tea beverages extracted according to the above-described procedure.
We have 0 food specialty panels taste it, the color of the extract,
For each item of fragrance and taste, a five-point rating of good (5 points), moderately good (4 points), neither good (3 points), not very good (2 points), and not good (1 point) I went. The average of the scores of 10 people was rounded off to the second decimal place to give the score of each item. As the judgment of the tasting evaluation, the color strength of the extract, the strength and goodness of the aroma,
The sum of the scores obtained for each item of good taste was evaluated as ○ when the score was 9.0 or more, and x when less than 9.0.

The test results of Examples 1 to 7 and Comparative Examples 1 to 6 are shown in Table 1.

[0040]

[Table 1]

The test results of Examples 8 to 12 and Comparative Examples 7 to 10 are shown in Table 2.

[0042]

[Table 2]

From Tables 1 and 2, all the beverage extraction bags of Examples 1 to 12 were evaluated as "good" in the judgment of <tasting result>, but the beverage extraction bags of the comparative examples were judged as x. It can be seen that the beverage extraction bags of Nos. 1 to 12 are superior to the beverage extraction bags of Comparative Examples 1 to 10 in terms of the color strength of the extract, the strength and goodness of the aroma, and the good taste.

[0044]

According to the beverage extraction bag of the present invention, a beverage having a good balance of flavor can be easily and rapidly extracted, and before use, it is made into a compact packaging form to save resources of the packaging material. Can be planned.

[Brief description of the drawings]

FIG. 1 is a perspective view (when not used) showing one embodiment of a beverage extraction bag of the present invention.

FIG. 2 is a perspective view (an initial stage of use) showing an embodiment of the beverage extraction bag of the present invention.

FIG. 3 is a perspective view (late stage of use) showing an embodiment of the beverage extraction bag of the present invention.

FIG. 4 is (a) a side view when not used and (b) a side view after use of one embodiment of the beverage extraction bag of the present invention.

FIG. 5 is a cross-sectional view showing a use form of one embodiment of the beverage extraction bag of the present invention.

FIG. 6 is (a) a side view when not used and (b) a side view after use of another embodiment of the beverage extraction bag of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag main body 11 Center folded part 12 Folded part 13 Adhesion part 2 Suspension member 21 Locking part

Continued on the front page (72) Inventor Kazuo Mori 2606 Akabane, Kakaicho, Haga-gun, Tochigi Pref.

Claims (4)

[Claims] 1. A beverage extraction bag comprising a bag body formed of a filter material and filled with a beverage extraction raw material, and a hanging member attached to the bag body, wherein the bag before the extraction operation is provided. The main body is divided into a filling part of the extraction raw material and a non-filling part of the extraction raw material that is not substantially filled with the extraction raw material, so that the extraction raw material of the filling part gradually moves to the unfilled part during the extraction operation. And
The vertical length of the bag body after the extraction operation is
A beverage extraction bag characterized in that the length is 120% to 200% of the length before the extraction operation. 2. The beverage extraction bag according to claim 1, wherein the bag main body is divided into the filled portion and the non-filled portion by bending the bag main body. 3. The bag body has a form in which both ends of a tubular member are joined and a bottom portion of the tubular member is folded in half, so that the filling part and the unfilled part are divided by the middle folding. The beverage extraction bag according to claim 1 or 2, wherein the beverage extraction bag is made. 4. The beverage extraction bag according to claim 1, wherein the bag body has a bent portion at the non-filled portion, and has a shape of an envelope after the extraction operation.