Coffee beans storage bag, method of extracting coffee, and method of providing coffee at restaurant and the like

Abstract

To provide coffee as tasty and aromatic as at specialist shops or more than those without fail, even in restaurant-business fields other than specialist shops or furthermore for general habitual drinkers, without losing coffee freshness over a long term.SOLUTION: A coffee beans storage bag 1 comprises an inner bag 3 that encloses roasted coffee beans 4 to be served for one dose of drinking and is permeable to water, and an outer bag 2 that receives the inner bag 3 internally in an airtight state, is charged with inert gas and has airtightness and light shield-ability. The inner bag 3 has two end faces to be unsealed to form an opening 3e, so that the coffee beans 4 can be inputted from an input port of a coffee mill through the opening 3e. The inner bag 3 emptied can be put connected with a coffee-powder discharge port of the coffee mill so as to recover coffee powder.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a coffee bean preservation bag that can maintain freshness for a long period of time and allow the original aroma and taste of coffee to be exhibited when drinking, a coffee extraction method using the coffee bean preservation bag, and a method of serving coffee in a restaurant or the like using the coffee bean preservation bag. [Background technology]

[0002] Conventionally, as one example that can be easily implemented by ordinary coffee drinkers, a coffee extraction bag and coffee extraction method have been proposed, as described in Patent No. 6798680 (hereinafter referred to as "Patent Document 1"), in which pre-roasted coffee powder is sealed in a water-permeable rectangular sealed bag, and when ready to drink, part of the bag is opened to expose the coffee powder, and the bag is placed on a separately prepared dripper, and hot water is poured onto the exposed coffee powder to extract delicious coffee. In stores, the coffee extraction bag can be made ready to pour hot water simply by opening two sides of the bag. As a result, in stores where coffee is brewed one cup at a time according to customer orders, it is possible to reduce work processes, improve efficiency, and prevent quality variations. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6798680 Summary of the Invention [Problem to be solved by the invention]

[0004] However, coffee powder sealed in a coffee extraction bag loses freshness significantly, and its expiration date is said to be one week after opening. In order to maintain as much freshness as possible, it must be stored in a freezer, making it difficult to handle. In contrast, coffee beans maintain their freshness for a much longer period than coffee powder, and for example, their expiration date can be extended by more than one month. The inventors focused on this point and, as a result of intensive research, have invented a coffee bean storage bag that does not lose the freshness of the coffee and that can be used in the food and beverage industry other than specialty stores, and even by ordinary coffee lovers, with coffee that has the same or even better freshness, flavor, and aroma as specialty stores.

[0005] In developing the present invention, several problems were encountered, as described below. First, the challenge in providing coffee beans is the volume of coffee beans that can be handled (sold). In terms of transportation costs, it is necessary to sell (wholesale) in units of 10kg or 20kg in order to make a profit. Also, from the perspective of the buyer, there is the challenge that if you purchase a large quantity of coffee beans, once you open the package, the freshness of the coffee beans will have decreased significantly by the time you have finished using the entire package. In addition, when coffee beans are limited to servings for one or two people and individually packaged, there is a measurement issue in that it is difficult to adjust the measurement depending on the coffee bean variety, cultivation time, etc. Furthermore, when providing coffee beans, there is a problem as to how to efficiently collect the ground coffee powder from individually packaged coffee beans, for example, by grinding them in a coffee mill.

[0006] There are also issues regarding the method of foaming when dripping after collection in the inner bag, and how to achieve proper dripping. Furthermore, there is a problem in adding a function of reusing the inner bag and the outer bag that constitute the coffee bean storage bag without waste, in addition to the original functions of the inner bag and the outer bag. The present invention has been made in consideration of the above circumstances, and its first object is to provide a coffee bean storage bag that can maintain the freshness of coffee, including its original aroma, flavor, astringency, richness, umami, etc., for a long period of time. A second object of the present invention is to provide a coffee bean storage bag that has a simple structure, can be mass-produced, and can be manufactured at low cost.

[0007] A third object of the present invention is to provide a coffee bean storage bag in which each component of the coffee bean storage bag can perform its original function while also performing other reusable functions. A fourth object of the present invention is to provide a coffee extraction method that can be used not only by coffee specialists, but also by staff at general restaurants and coffee lovers, and that can sufficiently extract flavor components and extract coffee with richness and umami without relying on a specialist such as a barista, without requiring much time and effort. A fifth object of the present invention is to provide a method of serving coffee in a restaurant or the like, which enables a restaurant or the like to provide customers with coffee bean storage bags, a coffee mill, coffee cups, a dripper, hot water, etc., and allows the customers to experience the process of extracting coffee using these items, while also contributing to a reduction in labor costs for the establishment. [Means for solving the problem]

[0008] The coffee bean storage bag according to the invention described in claim 1 comprises: A measured amount of pre-washed and pre-roasted coffee beans for at least one serving; an inner bag having water permeability, the inner bag having at least a part of an end surface that can be opened by pinching with fingertips to form an opening and having the measured coffee beans sealed therein; an outer bag having airtightness and light-shielding properties and filled with an inert gas such as nitrogen gas or carbon dioxide gas while the inner bag is stored in an airtight state therein; It is characterized in that it consists of:

[0009] The coffee extraction method according to the invention described in claim 9 comprises: A method for extracting coffee using the coffee bean storage bag according to any one of claims 1 to 8, When drinking coffee, opening the outer bag and removing the inner bag; opening at least one end surface of the inner bag to form the opening; A step of feeding the coffee beans sealed in the inner bag through the opening into the inlet of the coffee mill, which is an automatic mill or a manual mill; operating the coffee mill to produce the coffee powder; collecting the produced coffee powder into the inner bag through the opening; placing the inner bag on a dripper placed on a coffee cup or pitcher with the opening facing upward; A step of gradually pouring hot water onto the coffee powder exposed at the opening of the inner bag in the set state to drip the coffee liquid; The present invention is characterized by the following.

[0010] A method for serving coffee according to the invention described in claim 11 is a method for serving coffee in a restaurant or the like using the coffee bean storage bag described in any one of claims 1 to 8, comprising: In advance, the restaurant or other store will: When serving coffee to a customer, the steps of opening the outer bag and removing the inner bag and opening at least one or two end faces of the inner bag to form an opening are provided. a step of feeding the coffee beans sealed in the inner bag into an inlet of the coffee mill through the opening, a step of producing the coffee powder using the coffee mill, and a step of collecting the coffee powder in the inner bag; and then preparing hot water for drinking coffee; To the said customer, the inner bag in which the coffee powder is collected, and a coffee cup; A dripper that is placed on the top of the coffee cup; A pitcher having a capacity approximately equal to that of the coffee cup; hot water stored in the pitcher; The customer itself: The method comprises the steps of pouring hot water into the pitcher, placing the dripper on the coffee cup and placing the inner bag on the dripper with the opening facing upward, and pouring the hot water from the pitcher onto the coffee powder through the opening of the inner coffee cup, thereby allowing the extraction of fresh, fragrant, flavorless, and tasty coffee liquid with little effort and enabling the store to reduce labor costs. Effect of the Invention

[0011] According to the invention of claim 1, A measured amount of pre-washed and pre-roasted coffee beans for at least one serving; an inner bag having water permeability, the inner bag having at least a part of an end surface that can be opened by pinching with fingertips to form an opening and having the measured coffee beans sealed therein; an outer bag having airtightness and light-shielding properties and filled with an inert gas such as nitrogen gas or carbon dioxide gas while the inner bag is stored in an airtight state therein; The present invention provides the following excellent effects: First, it provides a coffee bean storage bag that significantly extends the expiration date compared to when coffee powder is individually packaged, and can maintain the freshness of coffee, including its inherent aroma, flavor, astringency, richness, and umami, for a long period of time. Secondly, it is possible to provide a coffee bean storage bag which has a simple structure, can be mass-produced, and can reduce manufacturing costs, and is convenient in shape, transportation, and portability.

[0012] According to the invention of claim 2, When the measured coffee beans are ground in a coffee mill, a part of the outer bag is opened to remove the inner bag, and the end face of the inner bag is opened with fingertips to form the opening, and the measured coffee beans can be put into the inlet of the coffee mill. Furthermore, the coffee powder produced by the coffee mill can be recovered in the inner bag through the opening. In addition to achieving the above first and second effects, the inner bag and outer bag that constitute the coffee bean storage bag can provide a coffee bean storage bag that not only performs its original storage function, but also has the function of putting coffee beans into a coffee mill and collecting the coffee powder produced in the coffee mill, and further has the function of extracting coffee essence when hot water is poured onto the coffee powder.

[0013] According to the invention of claim 3, The inner bag is made of nonwoven fabric, and the opening is formed by pinching only the upper two end faces of the four end faces with the fingertips to open the bag. The inner bag is attached to both side faces, and has handles that can be spread out on both sides to hook onto the opposing upper sides of the coffee cup. By hooking this handle onto the upper edge of the opposing part of a coffee cup, the inner bag opens wide, making it easier to pour hot water into the opening and eliminating the worry of overflowing the hot water or coffee powder.In addition, a coffee bean storage bag can be provided that allows coffee to be extracted even without a dripper. According to the invention of claim 4, The inner bag is a rectangular bag made of nonwoven fabric and has four sealed end faces, and the opening is formed by opening the adjacent first end face and second end face. To provide a coffee bean storage bag in which two sides of an inner bag containing coffee beans can be opened to allow the coffee beans inside to be put into a coffee mill, and coffee powder produced in the coffee mill can be easily recovered back into the inner bag through a large opening, and hot water can be poured through the opening to easily extract coffee.

[0014] According to the invention of claim 5, The outer bag is configured such that at least one side of the quadrilateral is cut so that it can be connected to the outlet of the coffee mill, and a corner of the side opposite to the one side is cut into a triangular shape to form a discharge outlet, so that the outer bag can be connected to the opening of the inner bag, and the outer bag can function as a funnel to collect the coffee powder discharged from the coffee mill through the discharge outlet and from the opening of the inner bag. In cases where it is difficult to directly collect the coffee powder discharged from the coffee mill into the opening of the inner bag, the outer bag can be interposed between the coffee mill and the opening of the inner bag, so that the outer bag acts as a funnel, thereby reducing costs without the need for a dedicated funnel and providing a coffee bean storage bag that can help facilitate the collection of coffee powder.

[0015] According to the invention of claim 6, The inner bag, in which the coffee powder has been collected through the opening, is placed on a separate coffee cup with the opening facing upward and the handles attached to both side surfaces spread out to both sides so that they can be hooked onto both opposing sides of the coffee cup. Hot water stored in a separate pitcher can be poured through the opening onto the coffee powder to drip the coffee. A pair of handles attached to both front and rear surfaces of the inner bag are hooked onto both opposing sides of a coffee cup, so that the entire inner bag is attached to the coffee cup, and thus a coffee bean storage bag can be provided in which hot water can be poured onto coffee powder through the opening to drip the coffee without using a dripper.

[0016] According to the invention of claim 7, The inner bag with the coffee powder collected through the opening is set in a dripper placed on a separate coffee cup with the opening facing upward, and hot water is poured into the coffee powder through the opening to drip the coffee. Dripping can be easily performed by pouring hot water into the coffee powder toward the opening of the inner bag, which has the advantage of making it easy for ordinary people to use. According to the invention of claim 8, The roasted coffee beans are The coffee beans are sealed in the inner bag and the inner bag is stored in the outer bag in an airtight state within 1 to 5 days after roasting. Based on the knowledge that aroma begins to be generated 24 hours or more after roasting, it is ideal to seal the outer bag within 1 to 5 days after roasting, and a coffee bean storage bag that emits a strong aroma when the outer bag is opened and coffee powder is produced in a coffee mill can be provided.

[0017] According to the invention of claim 9, A method for extracting coffee using the coffee bean storage bag according to any one of claims 1 to 8, When drinking coffee, opening the outer bag and removing the inner bag; opening at least one end surface of the inner bag to form the opening; A step of feeding the coffee beans sealed in the inner bag through the opening into the inlet of the coffee mill, which is an automatic mill or a manual mill; operating the coffee mill to produce the coffee powder; collecting the produced coffee powder into the inner bag through the opening; placing the inner bag on a dripper placed on a coffee cup or pitcher with the opening facing upward; A step of gradually pouring hot water onto the coffee powder exposed at the opening of the inner bag in the set state to drip the coffee liquid; By providing Not only coffee specialists, but also general restaurant staff and general coffee lovers can use the service without relying on experts such as baristas. To provide a coffee extraction method capable of extracting fresh coffee with sufficient extraction of flavor components, full-bodied and tasty coffee without requiring much time and labor, and capable of reducing labor costs to one-third of those required in conventional coffee specialty stores.

[0018] According to the invention of claim 10, 10. The method of claim 9, Immediately prior to the step of operating the coffee mill to produce the coffee powder, By spraying the coffee beans into the inlet with a mist of water, it is possible to prevent static electricity from being generated due to friction, and to prevent the generated coffee powder from adhering to the vicinity of the outlet of the coffee mill, thereby making it possible to reliably recover a predetermined amount of coffee powder. It is possible to provide a coffee extraction method in which the coffee beans fed into the coffee mill and the coffee powder discharged from the outlet of the coffee mill are properly matched, and production management of the coffee powder can be performed without waste.

[0019] According to the invention of claim 11, A method for serving coffee in a restaurant or the like using the coffee bean storage bag according to any one of claims 1 to 8, In advance, the restaurant or other store will: When serving coffee to a customer, the steps of opening the outer bag and removing the inner bag and opening at least one or two end faces of the inner bag to form an opening are provided. a step of feeding the coffee beans sealed in the inner bag into an inlet of the coffee mill through the opening, a step of producing the coffee powder using the coffee mill, and a step of collecting the coffee powder in the inner bag; and then preparing hot water for drinking coffee; To the said customer, the inner bag in which the coffee powder is collected, and a coffee cup; A dripper that is placed on the top of the coffee cup; A pitcher having a capacity approximately equal to that of the coffee cup; providing hot water to be stored in the pitcher; The customer itself: The steps of pouring hot water into the pitcher, placing the dripper on the coffee cup, and placing the inner bag on the dripper with the opening facing upwards, pouring the hot water from the pitcher onto the coffee powder through the opening of the inner coffee cup, and dripping the coffee to extract fresh, aromatic, flavorless, and tasty coffee liquid with little effort and reducing the labor costs of the store, are achieved. To provide a method of serving coffee in a restaurant or the like, which allows a restaurant or the like to provide customers with everything from coffee bean storage bags to coffee mills, coffee cups, drippers, pitchers, hot water, etc., and allows the customers to experience all the steps of using them to extract coffee, while also contributing to a significant reduction in labor costs for the establishment.

[0020] According to the invention of claim 12, A method for serving coffee in a restaurant or the like using the coffee bean storage bag according to any one of claims 1 to 8, In advance, the store The coffee bean storage bag has an inner bag in which at least the coffee beans are enclosed; The coffee mill; The coffee cup; A dripper that is placed on the coffee cup; A pitcher having a capacity approximately equal to that of the coffee cup; Hot water for filling the pitcher; and provide it to customers, On the customer side, opening one end surface of the inner bag of the coffee bean storage bag to form the opening; A step of feeding the coffee beans sealed in the inner bag into an inlet of the coffee mill through the opening; operating the coffee mill to produce the coffee powder; collecting the produced coffee powder in the inner bag; placing the dripper on the coffee cup and placing the inner bag on the dripper with the opening facing upward; pouring hot water into the coffee powder exposed at the opening of the inner bag using the pitcher to drip the coffee into the coffee cup; By making it possible to carry out the above tasks and experience them even without prior knowledge, The restaurant or other establishment only needs to provide the hardware, such as coffee bean storage bags, coffee mills, pitchers, and drippers, and the customers are free to handle the soft aspects themselves, making brewing easy and resulting in a fun and satisfying experience for customers, while also allowing the establishment to reduce labor costs.

[0021] According to the invention of claim 13, In the method for serving coffee in a restaurant or the like using the coffee bean storage bag according to claim 11, A support stand is used that can support the coffee mill in a fixed vertical position, and the open inner bag, dripper and pitcher are configured to be arranged vertically on the lower end side of the supported coffee mill. The store clerk simultaneously performs the steps of producing the coffee powder and collecting the coffee powder in the inner bag while carrying it to the customer's seat, allowing the coffee aroma to spread throughout the store, thereby improving the operating efficiency of store clerks and having the effect of encouraging other customers to place orders as they are attracted by the coffee aroma in the store. [Brief description of the drawings]

[0022] [Figure 1] 1A and 1B show the external configuration of a coffee bean storage bag according to a first embodiment of the present invention, where (a) is a front view and (b) is a side view. [Diagram 2] 1A and 1B show the configuration of a coffee bean storage bag according to a first embodiment of the present invention, in which (a) is a perspective view showing an inner bag in a slightly opened state, and (b) is a perspective view showing an inner bag in a widely opened state. [Diagram 3] FIG. 1 is a perspective view showing a state in which an outer bag constituting a coffee bean storage bag according to a first embodiment of the present invention is slightly opened. [Figure 4] FIG. 2 is a front view showing the external configuration of an inner bag that constitutes a coffee bean storage bag according to a modified example of the first embodiment of the present invention. [Diagram 5] FIG. 1 is a vertical cross-sectional view showing a cross-sectional configuration of a coffee mill for producing coffee powder from coffee beans, which is sealed in an inner bag of the coffee bean storage bag according to the present invention. [Figure 6] FIG. 6 is a perspective view showing a state in which coffee powder is produced using the coffee mill shown in FIG. 5 and the coffee powder is collected through an opening in the inner bag. [Figure 7] FIG. 7 is a front view showing a configuration in which an outer bag is inserted as a funnel between the inner bag of the present invention and a coffee mill having a larger outer diameter than the coffee mill shown in FIG. 6, making it easier to collect coffee powder. [Figure 8]FIG. 5 is a perspective view showing a state in which coffee powder produced by a coffee mill is collected by the inner bag shown in FIG. 4 and dripping is possible by hooking the handles of the inner bag onto the opposing upper edges of a normal coffee cup. [Figure 9] FIG. 2 is a perspective view showing the configuration of a dripper and pitcher for setting the inner bag in which coffee powder produced by a coffee mill is collected in the inner bag according to the present invention. [Figure 10] FIG. 10 is a plan view of the dripper and pitcher shown in FIG. [Figure 11] FIG. 11 is a cross-sectional view of the dripper and pitcher shown in FIGS. 9 and 10. [Figure 12] FIG. 1 is a perspective view showing a state in which the inner bag of the coffee bean storage bag of the present invention is opened, coffee beans are put into a coffee mill, and the coffee powder ground by the coffee mill is collected in the inner bag, and finally the entire set for extracting coffee liquid into a coffee cup is placed on a tray. [Figure 13] 13 is a perspective view showing the state in which the dripper and the open inner bag that were placed on the pitcher in the state shown in FIG. 12 are set on top of a coffee cup, hot water is poured into the pitcher, and then the hot water is poured into the opening of the inner bag. [Figure 14] FIG. 14 is a perspective view showing the process of pouring hot water from the pitcher onto the coffee powder in the inner bag, and then removing the inner bag from the coffee cup together with the dripper and returning it to the pitcher after the coffee extraction is complete. [Figure 15] 1(a) to 1(i) are process diagrams showing each step of the process, starting with opening the outer bag of the coffee bean storage bag of the present invention and removing the inner bag, to finally placing the inner bag on a dripper and pouring hot water from above the opened inner bag to extract coffee liquid. [Figure 16] This is a perspective view showing a state in which a set including an inner bag, a dripper, and a pitcher can be placed under a support stand for supporting a coffee mill used to provide coffee to customers at a restaurant or the like and the coffee powder discharge outlet of the coffee mill, and further, a coffee cup and a drip pot can be placed on a tray as needed. [Figure 17] FIG. 2 is a perspective view showing the external configuration of a dedicated funnel as an attachment attached to the lower end of the coffee mill. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] The present invention will be described in detail below based on preferred embodiments, with reference to the drawings as appropriate. However, the following embodiments do not limit the invention according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention. First Embodiment First, a first embodiment of a coffee bean storage bag according to the present invention will be described.

[0024] FIG. 1 shows the appearance of a coffee bean storage bag according to a first embodiment of the present invention, where (a) is a front view and (b) is a side view. 2(a), (b) and 3 are perspective views showing the external configurations of an inner bag and an outer bag constituting the coffee bean storage bag according to the first embodiment of the present invention. The coffee bean storage bag 1 consists of an outer bag 2 and an inner bag 3. Inside the inner bag 3, pre-washed and roasted coffee beans 4 are enclosed, which are measured into at least one serving of drinking coffee. The inner bag 3 is suitably made of a material having water permeability, such as nonwoven fabric, paper material, filter paper, flannel, etc., and serves the function of a so-called filter.

[0025] As shown in FIG. 2, the rectangular inner bag 3 has four end faces, namely a first end face 3a, a second end face 3b, a third end face 3c, and a fourth end face 3d. Of these, the fourth end face 3d is an end face where a nonwoven fabric or paper material is folded into a bag shape, for example, when the inner bag 3 is manufactured, and is not cut or welded. As a result, the fourth end surface 3d is configured so that it cannot be easily opened by pressure from the hand (the action of trying to open it by hand). Therefore, fourth end surface 3d can be placed in a dripper, which will be described later, without being opened or torn. In contrast, the first end surface 3a, the second end surface 3b, and the third end surface 3c are welded together when the material is cut in the process of manufacturing the inner bag 3.

[0026] In the cases shown in FIGS. 2(a) and 2(b), the first end surface 3a and the second end surface 3b are shown in a state in which they have been opened by manual manipulation. As a result, when the inner bag 3 is opened, it opens widely as shown in the perspective view of FIG. 2(b) (corresponding to claim 4). On the other hand, as shown in FIG. 3, the outer bag 2 has a rectangular shape large enough to allow the inner bag 3 to be sealed with ample space, and is made of a material that has the airtightness to maintain a state in which the inner bag 3 is stored in an airtight state and is filled with an inert gas such as nitrogen gas or carbon dioxide gas, and more preferably has light-blocking properties (corresponding to claim 1). The rectangular outer bag 2 has four end faces, namely a first end face 2a, a second end face 2b, a third end face 2c and a fourth end face 2d. Of these, the third end face 2c is, for example, one end face that is formed into a bag shape by folding a plastic material or a material made of aluminum foil coated with plastic when the outer bag 2a is manufactured.

[0027] The other three ends are heat fused. Since the outer bag 2 is airtight and light-blocking, the coffee beans sealed inside are completely cut off from the outside air, and therefore the freshness of the beans is maintained for a long period of time. In addition, the surface area of ​​the coffee beans is significantly smaller than that of conventional coffee powder, so the freshness of the beans is maintained for a significantly longer period of time. The ideal roasting process is: Since the aroma begins to emerge about 24 hours after the green coffee beans are roasted, it is desirable to seal the coffee beans 4 in the inner bag 3 and store the coffee in the outer bag 2 in an airtight state about one to five days after the roasting (corresponding to claim 8). By taking such considerations into account, when actually drinking coffee, the outer bag 2 and the inner bag 3 are opened, and the coffee beans 4 are ground in a coffee mill, giving off a strong, fresh aroma that fills the entire room.

[0028] When drinking coffee (preferably immediately before), this outer bag 2 has a cut in the area marked "▲ / OPEN" as shown in Figure 1, so by pinching this area with your fingertips and tearing it vertically to the bottom, the first end surface 2a is opened and an opening 2e is formed. Then, the inner bag 3 is removed from the inside through the opening 2e (FIG. 3). Incidentally, in FIG. 3, in addition to the first end face 2a, the second end face 2b is also shown in an open state. This is because, as will be described later in FIG. 7, when coffee beans are milled into coffee powder, the diameter of the outlet of the coffee mill is larger than the opening 3e of the inner bag 3 and the powdered coffee powder cannot be directly received into the opening of the inner bag 3. In this case, the outer bag 2 is inserted between the outlet of the coffee mill and the opening 3e of the inner bag 3 to function as a funnel.

[0029] For this purpose, in addition to the first end face 2a, the second end face 2b is cut separately with scissors or a knife to make a large opening with the two end faces, and by inserting the scissors into the dotted line part in Figure 3 and cutting it, a discharge hole 2f is formed, which gives it the function of a funnel (corresponding to claim 5). Next, a modified example of the inner bag constituting the coffee bean storage bag according to the present invention will be described with reference to FIG. FIG. 4 is a front view showing the external configuration of a modified example of the inner bag. The inner bag 5 of this modified example is basically similar to the inner bag 3 shown in Figure 2 in that it has a rectangular shape and has a first end face 5a, a second end face 5b, a third end face 5c and a fourth end face 5d, and is opened by unsealing the first end face 5a and the second end face 5b. The same applies to the material and the coffee beans stored inside.

[0030] However, in this modified example, the first end faces 5a, 5a and the second end faces 5b, 5b of the inner bag 5 are peeled off to form an opening 5e (see Figure 8), but it is characterized in that a handle portion 5f is attached to each of the front and back sides, and by spreading it out on both the front and back sides, it can be caught on the opposing upper edges of a coffee cup that is used separately, forming a large opening 5e at the top, allowing the coffee powder 6 to be exposed (see Figure 8) (corresponding to claim 3). The extraction of coffee will be described later. Next, a procedure for grinding the coffee beans stored in the coffee bean storage bag according to the present invention with a coffee mill will be described with reference to Figs. 5, 6 and 7.

[0031] FIG. 5 is a vertical cross-sectional view showing an example of an electric coffee mill, and FIG. 6 is a perspective view showing the collection of coffee powder generated when coffee beans are ground using the electric mill shown in FIG. In the electric coffee mill 7 shown in FIG. 5, first, the upper drive unit 9 connected to the upper end of the grinding unit 8 is rotated a predetermined angle to remove it, and the coffee beans 4 in the inner bag 3, which has been opened previously, are placed into the upper inlet 8a of the lower grinding unit 8, as shown in FIG. 2(b). Thereafter, the lower end of the drive unit 9 is reconnected to the upper end of the polishing unit 8 . Next, the cover 10 is removed from the grinding unit 8, and the opening 3e of the inner bag 3, which has been emptied by first putting coffee beans 4 into the input port 8a, is fitted into the vicinity of the coffee powder outlet of the coffee mill 7. However, if the opening 3e of the inner bag 3 does not fit, the cover 10 may be left unremoved, and the coffee powder may be stored inside the cover 10, and finally, the cover 10 may be removed and collected in the opening 3e of the inner bag 3.

[0032] In the above-mentioned state, when the power switch 9c of the electric coffee mill 7 is pressed to rotate the motor 9a, the torque is transmitted to the rotating shaft 8b of the grinding unit 8, causing the grinding blade 8c to rotate. A grinding ring 8d is provided close to the grinding blade 8c so as to form a V-shaped gap, so that the coffee beans 4 fed into the inlet 8a move down the V-shaped gap and the coffee powder 6 finely ground by the grinding blade 8c and the grinding ring 8d is collected in the inner bag 3 (or the cover 10) (corresponding to claim 2).

[0033] FIG. 6 is a perspective view of the electric coffee mill 7 shown in FIG. 5 being held in one hand and the coffee powder 6 being directly collected into the opening 3e of the inner bag 3. FIG. First, the empty inner bag 3, the two end faces of which have been opened in advance, is pushed with the opening 3e facing upward into the opening of the cover 10 having the function of a coffee cup. It is assumed that the coffee beans 4 sealed in the inner bag 3 have already been placed in the grinding unit 8. Then, by holding the upper half of the electric coffee mill 7 between the thumb, middle finger, ring finger, and little finger of the right hand and pressing the power switch 9c with the index finger of the right hand, the motor 9a provided in the drive unit 9 rotates, and as explained in Figure 5, the rotation is transmitted from the motor 9a to the rotating shaft 8b to the grinding blade 8c, and coffee powder is produced from the coffee beans. The coffee powder 6 is then discharged from the lower end of the grinding unit 8 and deposited in the opening 3e of the inner bag 3.

[0034] FIG. 7 shows a coffee mill having a larger outer diameter than that shown in FIG. 6 (particularly a hand-operated coffee mill), in which an outer bag 2 is inserted as a funnel between the inner bag 3 according to the present invention, facilitating recovery of coffee powder and promoting reuse and effective utilization of resources. First, the diameter of the discharge hole 12a for the coffee powder of the large coffee mill 12 is large, and the opening 3e of the inner bag 3 cannot receive the coffee powder 6 as it is, so the coffee powder 6 overflows, making it practically difficult to collect it. Therefore, as shown in Figures 1(a) and 3, the first end face 2a and the second end face 2b of the outer bag 2 are opened, for example, by tearing them along the cut line or by cutting them off with a cutting tool such as scissors or a knife, and the portion indicated by the dashed line at the corner formed by the third end face 2c and the fourth end face 2d is cut off to form a discharge hole 2f.

[0035] Then, the opening 2e of the outer bag 2 is widened and inserted into the discharge hole 12a at the lower end of the coffee grinder 12, and further, the opening 3e of the inner bag 3 is widened and inserted near the lower end of the outer bag 2, resulting in the large coffee grinder 12, the outer bag 2, and the inner bag 3 being integrally connected. The outer bag 2 and the inner bag 3 used in this way are opened just before drinking and an opening is simply provided, and unlike conventional funnels, there is no need to wash or dry them each time, so they can be easily reused, which is extremely convenient and economical.

[0036] Next, Figures 9 to 11 show the configuration of a dripper and pitcher for setting the inner bag 3 in which coffee powder produced by a coffee mill is collected and stored in the inner bag of the present invention, where Figure 9 is a perspective view, Figure 10 is a plan view, and Figure 11 is a cross-sectional view of the dripper and pitcher combined. The pitcher 14 is shown in dashed lines. 9 to 11, the lower container is pitcher 14, and fitting into its upper open end 14a is dripper 13. Dripper 13 is inverted cone-shaped with flange 13a at the upper end, spiral projection 13b extending inside to the lower end, and drain hole 13c having a predetermined diameter drilled at the lower end (bottom). The dripper 13 is engaged with the upper open end 14a of the pitcher 14. A communication hole 14b is opened at the lower end of the pitcher 14, and a spout 14c is provided corresponding to the installation position of the communication hole 14b. A handle portion 14d is provided on the opposite side of the spout 14c.

[0037] The method of using the dripper 13 and the pitcher 14 will be described below. First, as shown in FIG. 6, for example, the inner bag 3 containing the coffee powder 6 that has been ground by a coffee mill 7 and collected in the inner bag 3 is placed and set inside the inverted cone-shaped dripper 13. When hot water is poured over the coffee powder 6 and the entire coffee powder 6 is steamed with the hot water, the extracted coffee ingredients accumulate at the bottom of the dripper 13, the liquid level gradually rises, and flows out to the pitcher 14 side through the discharge hole 13c drilled in the bottom of the dripper 13. At the same time, the liquid level rises to above the dripper 13, i.e., near the center in the height direction of the upper part of the dripper 13, so that the lower half of the inverted cone-shaped inner bag 3 is immersed in the liquid, increasing the steaming effect. After maintaining this state for a suitable period of time, the handle 14d is held, and the pitcher 14 together with the dripper 13 is tilted, and the coffee is poured into a separately prepared coffee cup through the spout 14c formed at the upper end of the pitcher 14. When the coffee ingredients that have accumulated in the dripper 13 flow into the pitcher 14 side through the discharge hole 13c together with the coffee ingredients that have accumulated in the pitcher 14, the dripper 13 acts favorably on the dripper 13, and a rich and tasty coffee can be obtained.

[0038] Next, a method for extracting coffee using the inner bag 5 with a handle shown in FIG. 4 will be described. When drinking coffee, the outer bag 2 is opened and the inner bag 5 is taken out. The first end surface 5a and the second end surface 5b of the inner bag 5 are opened with a hand to form an opening. The coffee beans 4 sealed in the inner bag 5 are fed into the inlet of the coffee mill through the opening 5e, the opening 5e of the inner bag 5 is abutted against the powder outlet of the coffee mill, and the coffee mill is operated to produce coffee powder 6, which is collected in the inner bag 5. As shown in FIG. 8, the inner bag 5 in which the coffee powder 6 has been collected can be hooked onto the opposing upper edges of the coffee cup 15 by spreading the handles 5f, 5f attached to both side portions of the inner bag 5 to both sides, thereby widening the opening 5e of the inner bag 5 and completing the setting (corresponding to claim 6).

[0039] In this way, the roughly rectangular inner bag (filter) 5 can form the opening 5e and the internal space with the diagonal as the vertical axis, resulting in a wider opening 5e and providing an internal space into which hot water can be easily poured, without the hot water or coffee powder overflowing. For example, even when a large number of customers must be served at a restaurant such as a cafe, coffee can be made accurately and quickly for many people. In the case of the inner bag 5 having the handle portion 5f as shown in FIG. 8, dripping is possible without using the dripper 13 shown in FIGS. 9 to 11, and therefore it can be used easily.

[0040] Next, some steps of the coffee extraction method using the coffee bean storage bag according to the present invention, that is, steps after dripping, will be described with reference to Figs. For example, in a restaurant or the like, a store employee places on a tray 16 an inner bag 3 in which coffee powder 6 produced in a coffee mill has been collected and stored, a dripper 13, a pitcher 14, and a coffee cup 15, and supplies the coffee to a customer. In stores, thermoses, hot water taps, kettles, etc. are usually prepared, so the customer places the dripper 13 and the inner bag 3 containing coffee powder on top of the adjacent coffee cup 15 and pours hot water into the empty pitcher 14 (hot water supply state is not shown).

[0041] Next, in the state shown in FIG. 13, place dripper 13 together with inner bag 3 on the top of coffee cup 15, hold handle 14d of pitcher 14 that has previously received hot water, and gradually pour hot water from spout 14c onto coffee powder 6 stored in the opening of inner bag 3. Leave it to steam for about 60 seconds, for example, and then continue pouring hot water to extract fragrant coffee liquid. After the coffee extraction is complete, as shown in Figure 14, the dripper 13 is returned to the top of the pitcher 14 together with the inner bag 3 from above the coffee cup 15 after the extraction has been completed. The coffee stored in the coffee cup 15 can then be easily enjoyed as fresh, aromatic coffee, either directly or by adding sugar, milk, etc. as appropriate. Next, with reference to FIG. 15, a coffee extraction method using the coffee bean storage bag according to the present invention will be described step by step (approximately corresponding to claim 9).

[0042] As shown in FIG. 15(a), when drinking coffee, the steps are: opening the outer bag 2 constituting the coffee bean storage bag 1 according to the present invention, preferably immediately before drinking the coffee, and removing the inner bag 3; and opening at least one or two end faces of the inner bag 3 (FIG. 15(b)). a step of feeding the coffee beans 4 sealed in the inner bag 3 into an inlet of a coffee mill 7, which is an automatic mill or a manual mill, through the opening 3e (FIG. 15(c)); a step of operating the coffee mill 7 to produce coffee powder 6 (FIG. 15(d)); and a step of simultaneously collecting the produced coffee powder 6 into the inner bag 3 through the opening 3e (FIG. 15(d)); The steps include the steps of setting the inner bag 3 on the dripper 13 placed on a coffee cup 15 or pitcher 14 with the opening 3e facing upwards (Fig. 15(e)); refilling the pitcher 14 with hot water from the store's hot water supply equipment, for example a device that dispenses hot water from a hot water tap 18 when a push button 19 is pressed, or a thermos bottle, etc. (Fig. 15(f)); gradually pouring hot water onto the coffee powder 6 exposed to the opening 3e of the set inner bag 3 to drip the coffee liquid (Fig. 15(f)); once the coffee liquid has been extracted, removing the used coffee powder and dripper 13 from the coffee cup 15 and placing it on the pitcher 14 (Fig. 15(h)); and storing the fresh, fragrant coffee liquid extracted in the coffee cup 15 through the above steps (Fig. 15(i)). (All of these correspond to claim 9.)

[0043] Next, a method for serving coffee in a restaurant or the like using the coffee bean storage bag according to the present invention will be described. In advance, the restaurant or other store will: When serving coffee to a customer, the steps include opening the outer bag 2 and taking out the inner bag 3, and opening at least one or two end faces of the inner bag 3 to form an opening 3e. After carrying out the steps of feeding the coffee beans 4 sealed in the inner bag 3 into the inlet of the coffee mill 7 through the opening, producing the coffee powder using the coffee mill 7, and collecting the coffee powder 6 in the inner bag 3 (see Figures 15(a) to (d)), hot water for drinking coffee is prepared.

[0044] Then, to the said customer, the inner bag 3 in which the coffee powder 6 is collected, a coffee cup 15; A dripper 13 that is placed on the top of the coffee cup 15; A pitcher 14 having a capacity approximately equal to that of the coffee cup 15; Hot water to be stored in the pitcher 14 is provided. The customer itself: By carrying out the steps of pouring hot water into the pitcher 14, placing the dripper 13 on the coffee cup 15 and placing the inner bag 3 on the dripper 13 with the opening 3e facing upward, and pouring the hot water from the pitcher 14 onto the coffee powder through the opening 3e of the inner bag 3, it is possible to extract fresh, fragrant, flavorless, and tasty dripped coffee liquid without much effort and to reduce labor costs on the store side (corresponding to claim 11).

[0045] Next, the customer is shown how to brew coffee, with almost every step being experienced by the customer. In advance, the store will: The coffee bean storage bag 1 has an inner bag 3 in which at least the coffee beans 4 are sealed; The coffee mill 7; The coffee cup 15, A dripper 13 that is placed on the coffee cup 15; A pitcher 14 having a capacity similar to that of the coffee cup 15; Hot water for filling the pitcher 14; and provide it to customers.

[0046] On the customer side, a step of opening one end surface of the inner bag 3 of the coffee bean storage bag 1 to form the opening 3e (FIG. 15(b)); a step of feeding the coffee beans 4 sealed in the inner bag 3 into an inlet of the coffee mill 7 through the opening 3e (FIG. 15(c)); Operate the coffee mill 7 to produce the coffee powder 6 (FIG. 15(d)); collecting the produced coffee powder 6 in the inner bag 3 (Figure 15(d)); placing the dripper 13 on the coffee cup 15 and placing the inner bag 3 on the dripper 13 with the opening 3e facing upward; All steps can be performed, including pouring hot water into the coffee powder 6 exposed at the opening 3e of the inner bag 3 using the pitcher 14 and dripping the coffee into the coffee cup 15 (FIG. 15(g)), and even if you do not have specialized knowledge, you can enjoy the series of steps to create fresh, aromatic, and flavorless coffee. This saves a lot of time for the store (corresponding to claim 12).

[0047] Next, referring to FIG. 16, we will explain a coffee extraction method using the coffee bean storage bag of the present invention, in which the store provides the materials and equipment necessary for coffee extraction and the customer uses them to easily produce fresh, fragrant coffee liquid with no unpleasant flavors. The coffee mill 7 is generally held between the thumb, middle finger, and ring finger of the right hand as shown in FIG. 6, and coffee beans are ground while pressing switch 9c with the index finger. In order to perform this operation quickly and stably, it is appropriate to use a support stand 20 as shown in FIG. 16. That is, the support base 20 is made of a thin plate in an inverted U-shape, and a fitting hole 20a into which the lower end of the coffee mill 7 is fitted is formed in the flat surface of the upper side. The lower part of the grinding unit 8 protrudes from the underside of the top plate of the support stand 20, and since the inner bag 3 containing coffee powder, the flange part 13a of the dripper 13, and the pitcher 14 are arranged vertically below it, a space necessary for taking out and putting in the pitcher 14 and the dripper 13 is provided.

[0048] The tray 16 further carries a coffee cup 15 and, if necessary, a drip pot 21. If the coffee bean storage bag 1 shown in Figure 1 is attached to this, the processes (steps) from Figure 15(a) to Figure 15(i) can be carried out, but in particular, by using the support stand 20 of this embodiment, there is an effect that "the step of feeding the coffee beans 4 sealed in the inner bag 3 into the inlet of the coffee mill 7 through the opening 3e, and the step of operating the coffee mill 7 to produce coffee powder 6" can be carried out efficiently without failure, and the enjoyment of use is increased. Next, we will explain the dedicated funnel 20 as an attachment for the coffee mill shown in Figure 17. This dedicated funnel 22 is used when the diameter of the coffee powder discharge hole 12a of the large coffee mill 12 is too large for the opening 3e of the inner bag 3 to receive the coffee powder 6, causing it to overflow and making it difficult to collect it.

[0049] That is, the portion of the coffee mill 12 that fits into the coffee powder outlet 12d has a large diameter, and the diameter tapers toward the tip, becoming smaller than the opening 3e of the inner bag 3. As an example of a similar application, a funnel-shaped outer bag 2 is partially processed in FIG. 7 and described above. What is shown in FIG. 7 is made by partially processing the outer bag 2 into a funnel shape, and although the processing requires some effort, it has the advantage of being inexpensive (resource reuse). In contrast, the dedicated funnel 22 shown in FIG. 17 is dedicated to a specific coffee mill, and therefore is costly, but has the advantage of being easy to install and allowing for quick response.

[0050] In addition, in the present specification and claims, "restaurants, etc." generally refers to Japanese restaurants (e.g., sushi restaurants), Western restaurants (e.g., curry houses), Chinese restaurants and other Oriental restaurants, restaurants that mainly serve alcoholic beverages, convenience stores, campsites with an administrator, fishing ponds, mobile food stores using mobile food trucks, and even accommodation businesses such as inns and hotels. For example, in the case of a hotel or inn, the coffee bean storage bag 1 or the inner bag 3 is prepared in advance in each room, by adding it to a set on a tray 16 shown in FIG. 16 before the arrival of guests.

[0051] In addition, in the example shown in FIG. 16, the coffee mill 9 is electrically driven, but this may be replaced with a manually operated coffee mill, which will provide the user with a more enjoyable coffee extraction experience. In this way, fresh coffee beans can be ground in a coffee mill in each room of a hotel, etc., to produce coffee powder, and then hot water can be poured over the coffee to drip it, filling the entire room with a fragrant aroma. [Explanation of symbols]

[0052] 1 Coffee Bean Storage Bag 2 outer bags 3 Inner bag 4. Coffee beans 5 Inner bag 6. Coffee powder 7. Coffee mill (electric) 8 Polishing Unit 9 Drive unit 10. Cover 12 Large Coffee Mill 13 Dripper 14 Pitcher 15 Coffee Cup 16 Obon 17 Drip Pot 18 Hot water tap 19 Push Button 20 Support stand 21 Drip Pot 22 Funnel

Claims

1. at least one measured serving of pre-washed and pre-roasted coffee beans; an inner bag having water permeability, the inner bag having at least a part of an end surface that can be opened by pinching with fingertips to form an opening and having the measured coffee beans sealed therein; an outer bag having airtightness and light-shielding properties and filled with an inert gas such as nitrogen gas or carbon dioxide gas while the inner bag is stored in an airtight state therein; A coffee bean storage bag.

2. 2. The coffee bean storage bag according to claim 1, characterized in that, when the measured coffee beans are ground in a coffee mill, a part of the outer bag is opened to remove the inner bag, and an end face of the inner bag is opened with fingertips to form the opening, and the measured coffee beans can be put into the inlet of the coffee mill, and further, the coffee powder produced by the coffee mill can be recovered in the inner bag through the opening.

3. The coffee bean storage bag according to claim 1 or 2, characterized in that the inner bag is made of nonwoven fabric, and the opening is formed by pinching and opening only the upper two of the four end faces with the fingertips, and the inner bag is attached to both side faces and has handle portions that can be spread out on both sides to hook onto the opposing top edges of a coffee cup.

4. 3. The coffee bean storage bag according to claim 1, wherein the inner bag is a rectangular bag made of nonwoven fabric and having four sealed end faces, and the opening is formed by opening the adjacent first and second end faces.

5. 3. The coffee bean storage bag according to claim 2, wherein at least one side of the outer bag is cut into a quadrilateral shape so that it can be connected to the discharge outlet of the coffee mill, and a corner of the outer bag opposite the one side is cut into a triangular shape to form a discharge outlet, so that it can be connected to the opening of the inner bag, and is configured to function as a funnel for recovering the coffee powder discharged from the coffee mill from the opening of the inner bag via the discharge outlet.

6. 4. The coffee bean storage bag according to claim 2 or 3, characterized in that the inner bag, after the coffee powder has been collected through the opening, is placed on a separate coffee cup with the opening facing upward and the handle portions attached to both side portions spread out to both sides and hooked onto opposite sides of the coffee cup, and hot water stored in a separate pitcher can be poured through the opening onto the coffee powder to drip it.

7. The coffee bean storage bag according to claim 2 or 4, characterized in that the inner bag with the coffee powder collected through the opening is set in a dripper placed on a separate coffee cup with the opening facing upward, and hot water can be poured into the coffee powder through the opening to drip the coffee.

8. The roasted coffee beans are 2. The coffee bean storage bag according to claim 1, characterized in that the coffee bean storage bag is configured to be sealed in the inner bag and the inner bag is stored in an airtight state in the outer bag within a period of 1 to 5 days after roasting.

9. A method for extracting coffee using the coffee bean storage bag according to any one of claims 1 to 8, comprising the steps of: When drinking coffee, opening the outer bag and removing the inner bag; opening at least one end surface of the inner bag to form the opening; A step of feeding the coffee beans sealed in the inner bag through the opening into the inlet of the coffee mill, which is an automatic mill or a manual mill; operating the coffee mill to produce the coffee powder; collecting the produced coffee powder into the inner bag through the opening; placing the inner bag on a dripper placed on a coffee cup or pitcher with the opening facing upward; A step of gradually pouring hot water onto the coffee powder exposed at the opening of the inner bag in the set state to drip the coffee liquid; A coffee extraction method comprising:

10. 10. The method of claim 9, further comprising: Immediately prior to the step of operating the coffee mill to produce the coffee powder, This coffee extraction method is characterized in that a mist of water is sprayed onto the coffee beans fed into the feed opening, thereby preventing the produced coffee powder from adhering to the vicinity of the outlet of the coffee mill and ensuring that a predetermined amount of coffee powder is recovered.

11. A method for serving coffee in a restaurant or the like using the coffee bean storage bag according to any one of claims 1 to 8, comprising: In advance, the restaurant or other store will: When serving coffee to a customer, the steps of opening the outer bag and removing the inner bag are performed, and opening at least one or two end faces of the inner bag to form an opening; a step of feeding the coffee beans sealed in the inner bag into an inlet of the coffee mill through the opening, a step of producing the coffee powder using the coffee mill, and a step of collecting the coffee powder in the inner bag; and then preparing hot water for drinking coffee; To the said customer, the inner bag in which the coffee powder is collected, and a coffee cup; A dripper that is placed on the top of the coffee cup; A pitcher having a capacity approximately equal to that of the coffee cup; providing hot water to be stored in the pitcher; The customer itself: This method of serving coffee in a restaurant or the like comprises the steps of pouring hot water into the pitcher, placing the dripper on the coffee cup and placing the inner bag on the dripper with the opening facing upward, and pouring the hot water from the pitcher onto the coffee powder through the opening of the inner coffee cup, thereby allowing fresh, fragrant, flavorless, and tasty coffee liquid to be extracted without much effort and capable of reducing labor costs for the establishment.

12. A method for serving coffee in a restaurant or the like using the coffee bean storage bag according to any one of claims 1 to 8, In advance, the store The coffee bean storage bag has an inner bag in which at least the coffee beans are enclosed; The coffee mill; The coffee cup; A dripper that is placed on the coffee cup; A pitcher having a capacity approximately equal to that of the coffee cup; Hot water for filling the pitcher; and provide it to customers, At the customer side, opening one end surface of the inner bag of the coffee bean storage bag to form the opening; A step of feeding the coffee beans sealed in the inner bag into an inlet of the coffee mill through the opening; operating the coffee mill to produce the coffee powder; collecting the produced coffee powder in the inner bag; placing the dripper on the coffee cup and placing the inner bag on the dripper with the opening facing upward; pouring hot water into the coffee powder exposed at the opening of the inner bag using the pitcher to drip the coffee into the coffee cup; This method for serving coffee in a restaurant or the like is characterized in that it enables even a person without expert knowledge to enjoy the production of fresh, aromatic, and flavorless coffee liquid by carrying out the steps above.

13. 12. A method for serving coffee in a restaurant or the like using the coffee bean storage bag according to claim 11, comprising the steps of: A method for serving coffee in a restaurant etc., characterized in that a support stand capable of supporting and fixing the coffee mill in a vertical position is used, and the open inner bag, the dripper and the pitcher are configured to be arranged vertically on the lower end side of the supported coffee mill, and a waiter simultaneously performs the steps of producing the coffee powder and collecting the coffee powder in the inner bag while transporting it to the customer's seat, thereby spreading the aroma of the coffee throughout the store.

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