Coffee cup preparation method and portable coffee powder brewing method

Abstract

The present invention relates to the technical field of coffee. Disclosed are a coffee cup preparation method and a portable coffee powder brewing method. The coffee cup preparation method comprises the steps of: S1, preparing materials; S2, quantitatively filling coffee powder into a coffee cup; S3, press-fitting a filter cloth in place, heating a cloth press head for 0.5-1 second, and turning the edge of the filter cloth upward to be in hot-melt connection with the coffee cup; S4, press-fitting a sealing membrane in place, heating a membrane press head for 0.5-2 seconds, and turning the edge of the sealing membrane upward to be in hot-melt connection with the coffee cup; and S5, ending the preparation. The portable coffee powder brewing method comprises the steps of: a, tearing off a sealing membrane; b, adding hot water to submerge and soak a filter cloth; c, rotating a cup body left and right to form espresso-like coffee; and d, continuing adding water to the height above three-quarters of the cup body to form drinkable coffee. The coffee cup of the present invention is easy to carry, can be used anytime and anywhere, and is stackable, so that space for packaging, transportation and storage of coffee cups is saved, greatly reducing the packaging, transportation and storage costs of coffee cups and contributing positively to society.

Description

Coffee cup preparation method and portable coffee powder brewing method Technical Field

[0001] The invention relates to a coffee cup preparation method and a portable coffee powder brewing method, belonging to the technical field of coffee. Background Art

[0002] Coffee is an indispensable part of many people's daily lives, its rich aroma leaving a lasting impression. With rising living standards, drinking tea and coffee has become a common pastime. For its convenience, instant coffee is a good choice, allowing people to simply add water and drink anytime, anywhere. However, instant coffee often lacks the authentic aroma of ground coffee compared to ground coffee beans.

[0003] Ground coffee beans can't be brewed directly, as this creates a large amount of residue at the bottom of the coffee, which mixes with the coffee solution and affects the taste of the brewed coffee. Therefore, brewing this type of ground coffee requires the use of a filter, such as a professional coffee pot. Alternatively, a glass pot with a self-filtering mechanism can be used at home. This allows the ground coffee to be filtered after brewing, resulting in a smooth, fragrant, and aromatic coffee that is particularly delicious. However, this method is limited to coffee shops, homes, or those with the appropriate environment and tools.

[0004] In order to drink coffee brewed from coffee powder more conveniently, existing drip coffee machines, such as drip coffee machines, require users to carry a cup and drip coffee machine with them. When drinking, users open the filter bag and hang it on the cup. Hot water is poured over the coffee powder and then dripped into the cup. After brewing, the filter bag containing the coffee grounds is thrown away. This is inconvenient to operate. Moreover, the effective ingredients in the coffee grounds are not fully utilized if they are thrown away after brewing once. This method does not effectively extract the useful ingredients in the coffee grounds, resulting in serious waste. Therefore, there is a need for a coffee cup that is more convenient to use, can carry its own coffee grounds to retain the aroma of the coffee grounds, and has a filter structure to isolate the coffee grounds during brewing, so that users can enjoy the aroma of the coffee grounds anytime and anywhere. Furthermore, in order to enjoy the taste of authentic coffee powder, more and more methods of brewing coffee are being used. Whether it is the aforementioned drip coffee, hand-poured coffee, or brewing with a filter press, coffee powder is placed on filter paper and then poured directly onto the coffee powder with water. After one pour, the coffee powder is discarded, and the filtrate is the coffee beverage. This brewing operation, on the one hand, limits the contact time between the coffee powder and the water, and thus the effective ingredients in the coffee powder are not fully utilized. On the other hand, the operation is limited and can only be done in a coffee shop, at home, or in an environment with appropriate tools. If you want to drink coffee brewed from coffee powder on the road or on a picnic in an environment with hot water, it is often difficult to operate, and you have to choose instant coffee instead. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a method for preparing a coffee cup and a method for brewing portable coffee powder.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: A method for preparing a coffee cup, comprising a truncated cone-shaped coffee cup, a filter cloth and a sealing film, wherein the preparation method is as follows;

[0007] S1. Prepare materials: a frustum-shaped coffee cup, coffee grounds, a filter cloth, and a sealing membrane. The sealing membrane should be 0.015-0.1 mm thick. The filter cloth should have a diameter 2-10 mm larger than the inner diameter of the coffee cup where it connects to the body. The sealing membrane should have a diameter 2-10 mm larger than the inner diameter of the coffee cup where it connects to the body.

[0008] S2, filling the coffee powder into the bottom of the coffee cup according to a predetermined amount;

[0009] S3. Place the filter cloth flatly in the coffee cup and press the filter cloth into place using a cloth pressing device, wherein the cloth pressing device includes a cloth pressing head, which is heated for 0.5-1 second. At this time, the edge of the filter cloth is turned up to form a hot-melt connection between the filter cloth and the inner wall of the coffee cup;

[0010] S4. Place the sealing membrane flatly in the coffee cup and press fit the sealing membrane into place using a membrane pressing device, wherein the membrane pressing device includes a membrane pressing head, which is heated for 0.5-2 seconds. At this time, the edge of the sealing membrane is turned up to form a sealing membrane that is thermally melted to the inner wall of the coffee cup.

[0011] S5. Preparation is completed.

[0012] The beneficial effects of the present invention are as follows: the coffee cup preparation method selects a filter cloth piece of appropriate diameter and a sealing membrane piece of appropriate thickness and diameter, presses the filter cloth after filling the coffee cup with coffee powder, and specifically fixes the filter cloth on the inner wall of the cup body by hot melting. After the filter cloth is pressed, the sealing membrane is pressed on the top of the filter cloth, and the sealing membrane is pressed on the inner wall of the cup body by hot melting, thereby preparing a coffee cup that is easy to carry. The coffee cups prepared by the preparation method have stable quality and good consistency, and the preparation efficiency of the coffee cups is high. The coffee cup prepared by the above preparation method contains coffee powder, and the filter cloth is arranged above the coffee powder, which can filter the coffee when brewing coffee. The coffee cup is easy to carry and can be used anytime, anywhere without being restricted by various containers for brewing coffee powder. When drinking, simply pour hot water into the cup to brew the coffee powder. The coffee powder is always soaked in water and remains miscible with water, allowing the effective ingredients in the coffee to be fully extracted. Furthermore, the utilization rate of the effective ingredients in the coffee can be further improved by refilling the cup. In addition, the space between the sealing film and the cup mouth of the coffee cup prepared by this preparation method can be used as a stacking and insertion space. Adjacent coffee cups can be stacked, saving packaging space, transportation space, and storage space for the coffee cups, significantly reducing the packaging, transportation, and storage costs of hand-brewed cups, and having positive social significance.

[0013] On the basis of the above technical solution, the present invention can also be improved as follows.

[0014] Furthermore, nitrogen is filled before S4 or the coffee cup with the filter cloth is placed in a nitrogen environment.

[0015] The beneficial effect of adopting the above further solution is that the coffee powder is placed in a gas that will not cause oxidation and deterioration by adopting nitrogen-filled packaging, and the coffee powder will not come into contact with air, thereby preventing oxidation and deterioration and extending the shelf life of the coffee powder.

[0016] Furthermore, in the above step S4, the sealing film is provided above the filter cloth at a distance of 2-35 mm.

[0017] The beneficial effect of adopting the above-mentioned further scheme is that, on the one hand, the gap between the sealing mold and the filter cloth facilitates the press-fitting of the sealing mold without damaging the pressed filter cloth; the filter cloth will not be pulled off when the sealing film is torn off, ensuring that the filter cloth has the function of filtering the coffee powder; on the other hand, a stacking and insertion space is formed between the sealing film and the cup mouth of the cup body, which can realize the insertion and stacking of adjacent coffee cups, saving the packaging space, transportation space and storage space of the coffee cups, greatly reducing the packaging, transportation and storage costs of the coffee cups, and has positive social significance.

[0018] Furthermore, a pull tab is provided on the sealing film.

[0019] The beneficial effect of adopting the above further solution is that the sealing film can be torn off from the inner wall of the cup body by pulling the sealing film with the pull tab, making it more convenient to remove the sealing film.

[0020] Furthermore, the sealing film is an aluminum foil composite paper having a glossy surface and a matte surface. In the above step S3, the aluminum foil composite paper is placed into the coffee cup with the matte surface facing downward.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the aluminum foil composite paper is made of food grade, and a good sealing effect can be formed between the cup body of the coffee cup and the aluminum foil. The coffee powder in the sealed chamber is in a sealed environment and will not be exposed to the outside air, which will extend the shelf life of the coffee powder. In addition, the aroma of the coffee powder will not evaporate, which can ensure the taste of the coffee powder after brewing.

[0022] Furthermore, the coffee cup is a paper cup, which includes a wood pulp layer and a PE film laid inside the wood pulp layer.

[0023] The beneficial effect of adopting the above further solution is that both the filter cloth and the sealing film can be hot-melt-connected to the PE film on the inner wall of the cup body to achieve the connection between the filter cloth and the sealing film on the inner wall of the cup body.

[0024] Furthermore, the cloth pressing head and the film pressing head are respectively provided with a cloth heating rod and a film heating rod.

[0025] The beneficial effect of adopting the above further solution is that the pressure head is heated by the heating rod to achieve hot melt connection between the filter cloth and the inner wall of the cup body and between the sealing film and the inner wall of the cup body.

[0026] Furthermore, the cloth pressing device also includes a cloth pressing seat cover for positioning the coffee cup to be pressed with the filter cloth; the cloth pressing seat cover is arranged on the cloth pressing machine frame; the film pressing device also includes a membrane pressing seat cover for positioning the coffee cup to be pressed with the sealing film, and the membrane pressing seat cover is arranged on the membrane pressing machine frame.

[0027] The beneficial effect of adopting the above further solution is that, when the filter cloth is pressed, the coffee cup can be placed on the cloth pressing seat cover to achieve stable positioning of the coffee cup to be pressed, thereby ensuring the pressing quality of the filter cloth in the coffee cup; when the sealing film is pressed, the coffee cup can be placed on the film pressing seat cover to achieve stable positioning of the coffee cup to be pressed, thereby ensuring the pressing quality of the sealing film in the coffee cup.

[0028] Furthermore, the membrane pressing device also includes an outer mold cylinder adapted to the membrane pressing head, and the outer mold cylinder is arranged on the inner wall of the membrane pressing seat sleeve.

[0029] The beneficial effect of adopting the above-mentioned further scheme is that when the membrane pressing head presses the sealing film on the inner wall of the cup body, the outer mold cylinder can maintain the positioning and stable support of the cup body, avoiding deformation of the cup body during the pressing process, affecting the sealing effect of the sealing film after pressing, and further improving the sealing effect of the sealing film.

[0030] Furthermore, knurling is provided on the outer surface of the membrane pressing head; or knurling that matches each other is provided on the outer surface of the membrane pressing head and the inner surface of the outer mold cylinder.

[0031] The beneficial effect of adopting the above further solution is that a better sealing effect can be achieved. In addition, the upward turning edge of the sealing film can be guided to be more uniform.

[0032] The present invention also relates to a portable coffee powder brewing method, comprising a hand-poured cup, the hand-poured cup being made using the coffee cup preparation method described above, the hand-poured cup comprising a cup body, the cup body being a frustum structure with a larger top and a smaller bottom, a filter cloth being provided inside the bottom end of the cup body, the filter cloth and the bottom end of the cup body forming a sealed cavity, the sealed cavity being filled with coffee powder; a sealing membrane being further provided inside the cup body, the sealing membrane being provided on the inner wall of the cup body, the sealing membrane being provided above the filter cloth, and a sealed chamber being formed between the sealing membrane and the bottom end of the cup body;

[0033] The brewing steps are as follows:

[0034] a. Tear off the sealing film;

[0035] b. Evenly inject hot water above 90 degrees Celsius onto the filter cloth inside the cup, so that the water covers the filter cloth by 15-20mm; and soak for 5-20 seconds;

[0036] c. Rotate the cup body left and right, 3-20 turns each side to form espresso;

[0037] d. Continue to pour water until the cup is more than three-quarters of the height to form the coffee to be drunk.

[0038] The beneficial effects of the present invention are as follows: the coffee powder brewing method adopts a hand-poured cup carrying coffee powder, which is not only easy to carry, but also has a sealing film that can seal the sealed chamber, isolate and seal the coffee powder in the lower part of the cup body, and prevent the coffee powder from contacting oxygen and being oxidized, thereby extending the shelf life of the coffee powder. At the same time, the aroma of the coffee powder will not volatilize, and the drinking taste of the coffee after brewing will be maintained. In addition, there is coffee powder in the sealed cavity, and there is also a filter cloth that can filter coffee residues. When brewing, the sealing film can be torn off, and a small amount of hot water can be directly poured into the filter cloth. The hand-poured cup can be rotated, and the filter cloth can also help the coffee powder and water to mix during rotation. , so that the water can fully contact the coffee powder and mix evenly. The filtered liquid overflowing on the filter cloth is the espresso that has been fully blended with the coffee powder and filtered. Then, an appropriate amount of water is added to form the coffee to be drunk. During the entire brewing process of this coffee powder brewing method, the coffee powder is always soaked in water and remains soluble in water. The effective ingredients in the coffee can be fully extracted, thereby improving the utilization rate of the effective ingredients in the coffee powder. The brewed coffee tastes mellow and has a fragrant aftertaste. Not only that, the entire brewing process is easy to operate, and no other brewing containers are required. The drinking process is simpler, and the authentic aroma of coffee powder can be enjoyed in an environment with hot water such as on the road or on an outing.

[0039] On the basis of the above technical solution, the present invention can also be improved as follows.

[0040] Furthermore, after a certain amount of the coffee to be consumed in step d is consumed or finished, water is continuously added to form a refill coffee beverage.

[0041] The beneficial effect of adopting the above further scheme is that after drinking a certain amount of or finishing the hand-brewed coffee, water can be added to form a refill coffee drink and continue to drink, so that the coffee powder can be more fully in contact with the water, so that the effective ingredients of the coffee powder can be fully utilized, and the utilization rate of the effective ingredients in the coffee powder is greatly improved. The specific number of refills can be selected according to personal taste; milk can also be added according to personal taste to prepare a variety of drinks. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] FIG1 is a schematic structural diagram of a cloth pressing device according to the present invention;

[0043] FIG2 is a schematic structural diagram of a membrane press-packing device according to embodiment 1 of the present invention;

[0044] FIG3 is a schematic structural diagram of a membrane press-fitting device according to embodiment 2 of the present invention;

[0045] Figure 4 is a schematic structural diagram of an outer die cylinder with knurling;

[0046] FIG5 is a schematic structural diagram of Example 3 of preparing a coffee cup according to the present invention;

[0047] FIG6 is a schematic structural diagram of Example 4 of preparing a coffee cup according to the present invention;

[0048] FIG7 is a schematic diagram of the cross-sectional structure along the AA direction in FIG6;

[0049] FIG8 is a comparison diagram of the coffee cups of Example 3 and conventional cups in stacking;

[0050] FIG9 is a comparison diagram of the coffee cups of Example 4 and Example 3 in stacked state;

[0051] In the figure, 1. cup body; 2. filter cloth; 21. filter cloth flange; 3. sealing film; 31. pull tab; 32. sealing flange; 4. coffee powder; 5. cloth pressing device; 51. cloth pressing head; 52. cloth heating rod; 53. cloth pressing seat cover; 54. cloth pressing frame; 55. cloth pressing cylinder; 56. cloth pressing heating power supply; 6. membrane pressing device; 61. membrane pressing head; 62. membrane heating rod; 63. membrane pressing seat cover; 64. membrane pressing frame; 65. membrane pressing cylinder; 66. membrane pressing heating power supply; 67. knurling; 68. outer mold cylinder; 7. stacking and insertion space. DETAILED DESCRIPTION

[0052] The principles and features of the present invention are described below with reference to examples. The examples are only used to explain the present invention and are not used to limit the scope of the present invention.

[0053] As shown in Figures 1 to 9, a method for preparing a coffee cup includes a truncated cone-shaped coffee cup, a filter cloth 2, and a sealing film 3. The preparation method is as follows;

[0054] S1. Prepare materials: a truncated cone-shaped coffee cup, coffee powder 4, a filter cloth, and a sealing membrane. The thickness of the sealing membrane is 0.015-0.1 mm, for example, 0.1 mm. The diameter of the filter cloth is 2-10 mm larger than the inner diameter of the cup body 1 where it is connected to the coffee cup, for example, 3 mm. The diameter of the sealing membrane is 2-10 mm larger than the inner diameter of the cup body 1 where it is connected to the coffee cup, for example, 6 mm.

[0055] S2, quantitatively filling the coffee powder 4 into the bottom of the coffee cup;

[0056] S3. Place the filter cloth flatly in the coffee cup and press it into place using a cloth pressing device 5. The cloth pressing device 5 includes a cloth pressing head 51. Heat the cloth pressing head 51 for 0.5-1 second, such as 0.7 second. At this time, the edge of the filter cloth is turned up, so that the filter cloth 2 is thermally melted to the inner wall of the coffee cup.

[0057] S4. Place the sealing membrane flatly in the coffee cup and press it into place using a membrane pressing device 6. The membrane pressing device 6 includes a membrane pressing head 61. Heat the membrane pressing head 61 for 0.5-2 seconds, such as 1.2 seconds. At this time, the edge of the sealing membrane is turned up, forming a thermally fused connection between the sealing membrane 3 and the inner wall of the coffee cup.

[0058] S5. Preparation is completed.

[0059] Fill the coffee cup with nitrogen before S4 or place the coffee cup with the filter cloth in a nitrogen environment. Using nitrogen filling packaging, the coffee powder 4 is placed in a gas that will not cause it to oxidize and deteriorate. The coffee powder 4 will not come into contact with air, thus preventing it from oxidizing and deteriorating, and extending the shelf life of the coffee powder 4.

[0060] In step S4, the sealing film 3 is positioned 2-35 mm above the filter cloth 2. This gap between the sealing die and the filter cloth 2 facilitates press-fitting of the sealing die without damaging the press-fitted filter cloth 2. It also prevents the filter cloth 2 from being dragged off when the sealing film 3 is removed, ensuring that the filter cloth 2 retains its ability to filter the coffee powder 4. Furthermore, a stacking and insertion space 7 is formed between the sealing film 3 and the rim of the cup body 1, enabling the insertion and stacking of adjacent coffee cups. This saves packaging, transportation, and storage space, significantly reducing packaging, transportation, and storage costs, and thus has positive social significance.

[0061] The sealing film 3 is further provided with a pull tab 31. The sealing film 3 can be pulled off from the inner wall of the cup body 1 by pulling the pull tab 31, making it more convenient to remove the sealing film 3.

[0062] The distance between the sealing film 3 and the filter cloth 2 can be 2mm, 5mm, 7mm, 8mm, 10mm, 13mm, 16mm, 20mm, 22mm, 23mm, 25mm, 27mm, 30mm, 32mm, 34mm, 35mm, etc. On the one hand, this prevents the filter cloth 2 from being dragged down when the sealing film 3 is removed, ensuring the stability of the filter cloth 2. On the other hand, the appropriate position of the sealing film 3 on the inner wall of the cup body 1 can be selected according to actual needs. This not only facilitates the processing of the filter cloth 2 and the sealing film 3, ensuring the stability of the filter cloth 2, but also fully utilizes the space between the sealing film 3 and the cup mouth, thereby meeting the packaging, transportation, and storage space requirements of the hand-poured cup. To ensure the relative position of the filter cloth 2 and the sealing film 3 in the cup body 1, the bottom diameter of the membrane pressing head 61 is generally larger than the bottom diameter of the cloth pressing head 51.

[0063] The sealing membrane is made of aluminum foil composite paper, which has both a glossy and matte surface. In step S3, the matte surface of the aluminum foil composite paper is placed face-down into the coffee cup. The food-grade aluminum foil composite paper forms a strong seal between the coffee cup body 1 and the aluminum foil. The coffee powder 4 within the sealed chamber is sealed and protected from outside air, extending the shelf life of the coffee powder 4. Furthermore, the aroma of the coffee powder 4 is prevented from evaporating, ensuring a pleasant after-brew experience. Furthermore, the sealing membrane 3 is made of aluminum foil. Aluminum foil is lightweight, ductile, easily moldable, and conveniently processed. It bonds strongly to the inner wall of the cup body 1, exhibits high barrier properties, and is unaffected by environmental factors and stability. The sealing membrane 3 provides a strong seal, preventing the coffee within the cup body 1 from absorbing moisture, oxidizing, and deteriorating.

[0064] The coffee cup is a paper cup comprising a wood pulp layer and a PE film applied inside the wood pulp layer. The filter cloth 2 and the sealing film 3 can be connected to the PE film on the inner wall of the cup body 1 by hot-melt connection.

[0065] The cloth pressing head 51 and the film pressing head 61 are respectively provided with a cloth heating rod 52 and a film heating rod 62. The heating rods heat the pressing heads to achieve hot melt connection between the filter cloth 2 and the inner wall of the cup body 1 and between the sealing film 3 and the inner wall of the cup body 1.

[0066] Both the cloth pressing head 51 and the membrane pressing head 61 are frustoconical, with a taper equal to that of the coffee cup. As shown in Figures 1-3, the pressing heads and the coffee cup body 1 are both frustoconical in shape, making it easy for the pressing heads to enter and exit the coffee cup, preventing damage to the cup during the press-fitting process and ensuring the quality of the press-fitting of the filter cloth 2 and sealing membrane 3.

[0067] As shown in Figure 1 , the cloth pressing device 5 includes not only the aforementioned cloth pressing head 51 and cloth heating rod 52, but also a cloth pressing seat 53 for positioning the coffee cup onto which the filter cloth 2 is to be pressed. The cloth pressing seat 53 is mounted on a cloth pressing frame 54. The cloth pressing frame 54 is also equipped with a cloth pressing cylinder 55 for driving the cloth pressing head 51 up and down, and a cloth pressing heating power supply 56 for powering the cloth heating rod 52. During the press-fitting of the filter cloth 2, the coffee cup can be placed on the cloth pressing seat 53, ensuring stable positioning of the coffee cup and ensuring the quality of the press-fitting of the filter cloth 2 within the coffee cup.

[0068] In Example 1, as shown in Figure 2, the film pressing device 6 comprises not only the aforementioned film pressing head 61 and film heating rod 62, but also a film pressing seat 63 for positioning the coffee cup to be press-fitted with the sealing film 3. The film pressing seat 63 is mounted on a film pressing frame 64. The film pressing frame 64 is also equipped with a film pressing cylinder 65 for driving the film pressing head 61 up and down, and a film pressing heating power supply 66 for powering the film heating rod 62. During press-fitting of the sealing film 3, a coffee cup can be placed on the film pressing seat 63 for stable positioning, ensuring the quality of the press-fitting of the sealing film 3 within the coffee cup.

[0069] In Example 2, as shown in FIG3 , based on Example 1, the membrane pressing device 6 further includes an outer die cylinder 68 adapted to the membrane pressing head 61. The membrane pressing seat 63 is disposed on a membrane pressing frame 64, and the outer die cylinder 68 is disposed on the inner wall of the membrane pressing seat 63. When the membrane pressing head 61 presses the sealing film 3 onto the inner wall of the cup body 1, the outer die cylinder 68 can maintain the positioning and stable support of the cup body 1, preventing deformation of the cup body 1 during the pressing process that would affect the sealing effect of the sealing film 3 after pressing, thereby further improving the sealing effect of the sealing film 3.

[0070] The outer surface of the membrane pressing head 61 is provided with knurling 67; alternatively, the outer surface of the sealing membrane 3 pressing head and the inner surface of the outer mold cylinder 68 are provided with knurling 67 that match each other, as shown in FIG4 . This can achieve a better sealing effect and also guide the upward turning edge of the sealing membrane 3 to be more uniform.

[0071] A coffee cup is obtained by the above preparation method, comprising a cup body 1, which is a frustum structure with a larger top and a smaller bottom. A filter cloth 2 is provided inside the cup body 1, and a cavity filled with coffee powder 4 is formed between the filter cloth 2 and the bottom end of the cup body 1. A sealing film 3 is also provided inside the cup body 1, and the sealing film 3 is arranged on the inner wall of the cup body 1. The sealing film 3 is arranged above the filter cloth 2, and a sealed chamber is formed between the sealing film 3 and the bottom of the cup body 1.

[0072] The coffee cups made by this preparation method have different installation heights of the sealing film 3;

[0073] In Example 3, as shown in FIG5 , the distance between the sealing film 3 and the filter cloth 2 in the coffee cup is large, about 30 mm.

[0074] In Example 4, as shown in Figures 6 and 7 , the spacing between the sealing membrane 3 and the filter cloth 2 inside the coffee cup is small, approximately 5 mm. The space between the sealing membrane 3 and the cup opening can be used as a stacking and insertion space 7, allowing adjacent coffee cups to be stacked. This saves packaging, transportation, and storage space, significantly reducing the packaging, transportation, and storage costs of pour-over cups, thus having positive social significance.

[0075] The right picture of Figure 8 shows an existing cup filled with beverages or powdered drinks. Generally, a sealing film 3 is provided at the cup mouth. Although sealing the cup mouth is relatively easy to achieve, if adjacent cups are stacked, the bottom of the upper cup can only be pressed on the sealing film 3 of the lower cup mouth. On the one hand, the sealing film 3 is provided at the cup mouth, which wastes the internal space of the cup and cannot effectively utilize the internal space of the cup. The internal space of the cup is seriously wasted and can only be packaged flat, which takes up a large space. The left picture of Figure 8 shows the stacked state of coffee cups in Example 3 of the present invention. Compared with the right picture, with the same height space, the existing one can only stack two cups, while Example 3 of the present invention can stack three coffee cups, making full use of the height space from the sealing layer in the cup body 1 to the cup mouth, saving packaging space, transportation space and storage space, and reducing the packaging cost of hand-poured cups.

[0076] Figure 9 compares Example 3 and Example 4 of the present invention. The left figure shows the stacked state of pour-over cups in Example 4, and the right figure shows the stacked state of pour-over cups in Example 3. As can be seen from the figures, the left figure can accommodate four coffee cups, while the right figure, while being taller than the left figure, can only accommodate three coffee cups. This shows that the different positions of the sealing film 3 on the inner wall of the cup body 1 have a certain impact on the stacking of the cups in the height direction. Therefore, on the basis that the sealing film 3 can seal the coffee powder 4, the appropriate position of the sealing film 3 can be selected according to actual needs to fully utilize the stacking and insertion space 7 between the sealing layer and the cup mouth. This significantly reduces the packaging, transportation, and storage costs of the pour-over cups, which has positive social significance.

[0077] As shown in Figures 5 to 9, the present invention also relates to a portable coffee powder brewing method, including a hand-poured cup, wherein the hand-poured cup is a coffee cup made by the coffee cup preparation method described above, and the hand-poured cup includes a cup body 1, wherein the cup body 1 is a frustum structure with a larger upper portion and a smaller lower portion, and a filter cloth 2 is provided inside the bottom end of the cup body 1, wherein the filter cloth 2 and the bottom end of the cup body 1 form a closed cavity, and the closed cavity is filled with coffee powder 4; a sealing membrane 3 is further provided inside the cup body 1, wherein the sealing membrane 3 is provided on the inner wall of the cup body 1, wherein the sealing membrane 3 is provided above the filter cloth 2, and a sealed chamber is formed between the sealing membrane 3 and the bottom of the cup body 1;

[0078] The brewing steps of Example 5 are as follows:

[0079] a. Tear off the sealing film 3;

[0080] b. Evenly inject hot water above 90 degrees Celsius on the filter cloth 2 in the cup body 1, so that the water covers 15mm above the filter cloth 2; and soak for 10 seconds;

[0081] c. Rotate the cup body 1 left and right, 15 turns each side to form espresso;

[0082] d. Continue to pour water until the cup body 1 is more than three-quarters of the height to form the coffee to be drunk.

[0083] The brewing steps of Example 6 are as follows:

[0084] a. Tear off the sealing film 3;

[0085] b. Evenly inject hot water above 90 degrees Celsius on the filter cloth 2 in the cup body 1, so that the water covers 18mm above the filter cloth 2; and soak for 15 seconds;

[0086] c. Rotate the cup body 1 left and right, 10 turns each side, to form espresso;

[0087] d. Continue to pour water until the cup body 1 is more than three-quarters of the height to form the coffee to be drunk.

[0088] The brewing steps of Example 7 are as follows:

[0089] a. Tear off the sealing film 3;

[0090] b. Evenly inject hot water above 90 degrees Celsius onto the filter cloth 2 in the cup body 1, so that the water covers 16 mm above the filter cloth 2; and soak for 8 seconds;

[0091] c. Rotate the cup body 1 left and right, 20 turns each side to form espresso;

[0092] d. Continue to pour water until the cup body 1 is more than three-quarters of the height to form the coffee to be drunk.

[0093] After a certain amount of coffee is consumed or the coffee in step d of the above embodiments is consumed, water is added to form a refill coffee drink. After a certain amount of coffee is consumed or the coffee in the pour-over cup is consumed, water can be added to form a refill coffee drink and continue to be consumed. This allows the coffee powder 4 to come into more complete contact with the water, allowing the effective ingredients in the coffee powder 4 to be fully utilized, significantly improving the utilization rate of the effective ingredients in the coffee powder 4. The number of refills can be selected according to personal taste. Milk can also be added to prepare a variety of drinks according to personal taste.

[0094] The filter cloth 2 is made of non-woven fabric, which can effectively intercept coffee residues and achieve better filtering effect.

[0095] The sealing film 3 is provided with a sealing flange 32 connected to the inner wall of the cup body 1. The sealing flange 32 increases the connection area between the sealing film 3 and the inner wall of the cup body 1, increases the connection stability between the sealing film 3 and the inner wall of the cup body 1, and meets the sealing requirements of the sealed chamber.

[0096] The filter cloth 2 is provided with a filter cloth flange 21 connected to the inner wall of the cup body 1. The filter cloth flange 21 can increase the connection area between the filter cloth 2 and the inner wall of the cup body 1, ensure the connection stability between the filter cloth 2 and the cup body 1, and meet the requirement of the filter cloth 2 to filter coffee residues.

[0097] The sealed chamber is filled with nitrogen. The air in the sealed chamber is replaced by the nitrogen, ensuring that the coffee powder 4 in the sealed cavity is in contact with a gas that will not cause oxidation and deterioration, thereby preventing the coffee powder 4 from oxidizing and deteriorating and extending the shelf life of the coffee powder 4.

[0098] The right picture of Figure 8 shows that a sealing film 3 is set at the cup mouth of an existing cup. If adjacent cups are stacked, the bottom of the upper cup can only press on the sealing film 3 of the cup mouth of the lower cup. If multiple cups are stacked, the space inside the cup cannot be effectively utilized, and the internal space of the cup is seriously wasted, resulting in the cups having to be laid flat and packed in a box, which takes up a large space. The left picture shows a stacking state of a hand-poured cup with the sealing film 3 located at about half the height of the cup. Compared with the right picture, with the same height space, the existing one can only stack two cups, while the hand-poured cup can stack three. The hand-poured cup fully utilizes the height space from the sealing film 3 in the cup body 1 to the cup mouth, saving packaging space, transportation space and storage space, and reducing the packaging cost of the hand-poured cup.

[0099] FIG9 shows a comparison of different heights of the sealing film 3 inside the cup body 1. As can be seen from the figure, the left figure can accommodate four hand-poured cups, while the right figure can only accommodate three hand-poured cups despite its overall height being higher than that of the left figure. It can be seen that the arrangement of the sealing film 3 at different positions on the inner wall of the cup body 1 has a certain influence on the stacking of the hand-poured cups in the height direction. Therefore, on the basis that the sealing film 3 satisfies the sealing of the coffee powder 4, the position of the sealing film 3 can be appropriately selected according to actual needs to make full use of the stacking and insertion space 7 between the sealing film 3 and the cup mouth.

[0100] Under the action of the filter cloth 2, the particles in the coffee powder 4 and the coffee blocks that have not been brewed will not be accidentally drunk. The sealing film 3 can seal and preserve the flavor, and it is also convenient for stacking, storing and transporting adjacent cup bodies 1. When brewing, tear off the sealing film 3 and pour hot water directly into the cup body 1. The hot water can penetrate the filter cloth 2 to brew the coffee powder 4 in the cavity. The coffee brewing and drinking process is convenient and simple. During the brewing process, the coffee powder 4 is always soaked in water and remains in a water-soluble state. The effective ingredients in the coffee can be fully extracted. Not only that, the utilization rate of the effective ingredients in the coffee can be further improved by refilling the cup, and the aroma of the coffee powder 4 can be enjoyed.

[0101] The coffee cup of the present invention can be made by the coffee cup preparation method. The coffee cup contains coffee powder 4, and a filter cloth 2 is arranged above the coffee powder 4, which can filter coffee residue when brewing coffee. At the same time, a sealing membrane 3 is arranged above the filter cloth 2, which not only seals the coffee powder 4 and isolates it from the outside air, preventing the coffee powder 4 from oxidizing and deteriorating, and extending its shelf life, but also prevents the aroma of the coffee powder 4 from volatilizing, ensuring the drinking taste of the coffee powder 4 after brewing. The coffee cup is easy to carry and can be drunk anytime and anywhere without being limited by the various containers for brewing the coffee powder 4. When drinking, you can tear off the sealing film 3, add a small amount of hot water into the cup body 1, and then shake the cup body 1 to allow the added hot water to fully blend with the coffee powder 4 in the cavity. After that, you can pour an appropriate amount of hot water into the cup body 1, and the hot water can penetrate the filter cloth 2 to brew the coffee powder 4 in the cavity. The coffee brewing and drinking process is more convenient and simple. During the brewing process, the coffee powder 4 is always soaked in water and remains in a water-soluble state. The effective ingredients of the coffee powder 4 can be fully extracted. Not only that, the utilization rate of the effective ingredients of the coffee powder 4 can be further improved by refilling the cup.

[0102] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for preparing a coffee cup, characterized in that: The invention comprises a truncated cone-shaped coffee cup, a filter cloth (2) and a sealing film (3), and the preparation method thereof is as follows: S1. Material preparation: a truncated cone-shaped coffee cup, coffee powder (4), a filter cloth, and a sealing membrane; the thickness of the sealing membrane is 0.015-0.1 mm; the diameter of the filter cloth is 2-10 mm larger than the inner diameter of the connection position of the cup body (1) of the predetermined coffee cup; the diameter of the sealing membrane is 2-10 mm larger than the inner diameter of the connection position of the cup body (1) of the predetermined coffee cup; S2, filling the coffee powder (4) into the bottom of the coffee cup according to a certain quantity; S3, placing the filter cloth piece flatly in the coffee cup, and pressing the filter cloth piece into place using a cloth pressing device (5), wherein the cloth pressing device (5) comprises a cloth pressing head (51), and heating the cloth pressing head (51) for 0.5-1 second; at this time, the edge of the filter cloth piece is turned up to form a filter cloth (2) that is thermally melted to the inner wall of the coffee cup; S4, placing the sealing membrane flat in the coffee cup, and pressing the sealing membrane into place using a membrane pressing device (6), wherein the membrane pressing device (6) includes a membrane pressing head (61), and heating the membrane pressing head (61) for 0.5-2 seconds; at this time, the edge of the sealing membrane is turned up to form a sealing membrane (3) that is thermally melted to the inner wall of the coffee cup; S5. Preparation is completed.

2. The method for preparing a coffee cup according to claim 1, wherein: Fill the coffee cup with nitrogen before the above S4 or place the coffee cup with the filter cloth in a nitrogen environment.

3. The method for preparing a coffee cup according to claim 1, wherein: In the above S4, the sealing film (3) is provided above the filter cloth (2) at a distance of 2-35 mm; and / or a pull tab (31) is further provided on the sealing film (3).

4. The method for preparing a coffee cup according to claim 1, 2 or 3, wherein: The sealing film is an aluminum foil composite paper having a glossy surface and a matte surface. In the above S3, the aluminum foil composite paper is placed into the coffee cup with the matte surface facing downward.

5. The method for preparing a coffee cup according to claim 1, wherein: The coffee cup is a paper cup, comprising a wood pulp layer and a PE film applied inside the wood pulp layer, and / or the cloth pressing head (51) and the film pressing head (61) are respectively provided with a cloth heating rod (52) and a film heating rod (62).

6. The method for preparing a coffee cup according to claim 1, 2 or 3, wherein: The cloth pressing device (5) further comprises a cloth pressing seat cover (53) for positioning a coffee cup to be press-fitted with a filter cloth (2); the cloth pressing seat cover (53) is arranged on a cloth pressing machine frame (54); the membrane pressing device (6) further comprises a membrane pressing seat cover (63) for positioning a coffee cup to be press-fitted with a sealing film (3); the membrane pressing seat cover (63) is arranged on a membrane pressing machine frame (64).

7. The method for preparing a coffee cup according to claim 6, wherein: The membrane pressing device further comprises an outer die cylinder (68) adapted to the membrane pressing head (61), and the outer die cylinder (68) is arranged on the inner wall of the membrane pressing seat sleeve (63).

8. The method for preparing a coffee cup according to claim 7, wherein: The outer surface of the membrane pressing head (61) is provided with knurling (67); or the outer surface of the membrane pressing head (61) and the inner surface of the outer mold cylinder (68) are provided with knurling (67) that are adapted to each other.

9. A portable coffee powder brewing method, including a hand brewing cup, characterized in that: The hand-poured cup is a coffee cup made by the coffee cup preparation method according to any one of claims 1 to 8, and the hand-poured cup comprises a cup body (1), the cup body (1) is a frustum structure with a larger upper portion and a smaller lower portion, a filter cloth (2) is provided inside the bottom end of the cup body (1), the filter cloth (2) and the bottom end of the cup body (1) form a closed cavity, and the closed cavity is filled with coffee powder (4); a sealing film (3) is further provided inside the cup body (1), the sealing film (3) is arranged on the inner wall of the cup body (1), the sealing film (3) is arranged above the filter cloth (2), and a sealed chamber is formed between the sealing film (3) and the bottom of the cup body (1); The brewing steps are as follows: a. Tear off the sealing film (3); b. Inject hot water evenly above 90 degrees Celsius onto the filter cloth (2) within the cup (1), so that the water covers the filter cloth (2) 15-20mm; and soak for 5-20 seconds; c. Rotate the cup body (1) about 3-20 times to form espresso; d. Continue to pour water until the cup (1) reaches more than three-quarters of its height to form the coffee to be drunk.

10. The portable coffee powder brewing method according to claim 9, characterized in that: After a certain amount of the coffee to be consumed in step d is consumed or the coffee is finished, water is continuously added to form a refill of the coffee beverage.

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