Hard packaging structure for shape-preserving fresh-locking fermented wheaten food

Abstract

The utility model relates to a hard packaging structure for shape-preserving fresh-locking fermented wheaten food. The hard packaging structure comprises a containing unit, a sealing cover, a flexible ventilation cover and a fixing device. The flexible ventilation cover is arranged between the containing unit and the sealing cover, and the flexible ventilation cover is fixed to the containing unit through a fixing device; when cooked wheaten food is steamed, the containing unit is not sealed, and after steaming, the top of the containing unit is sequentially provided with the flexible ventilation cover and the sealing cover to be sealed and fastened. The combined fresh-keeping packaging structure is adopted, cooked additive-free Chinese-style fermented stuffed wheaten food is placed in the containing unit, the flexible ventilation cover is arranged at the top of the containing unit to meet the ventilation requirement, and high-temperature disinfection is conducted on the containing unit while the wheaten food is steamed; after cooked wheaten food is steamed, the sealing cover is additionally arranged on the top of the flexible ventilation cover, and the sealing performance is good after the whole is cooled to normal temperature; the utility model has the characteristics of simple structure, convenience in operation and low use cost, and the preservation time of the wheaten food wrapper and stuffing can be prolonged without adding any preservative.

Description

Technical Field

[0001] This utility model belongs to the technical field of food preservation packaging structure, and is applied to additive-free fermented pasta, particularly relating to a rigid packaging structure for preserving shape and locking in freshness of fermented pasta. Background Technology

[0002] Currently, there are generally two common packaging methods for Chinese-style fermented filled pasta (such as steamed buns and stuffed bread): One is modified atmosphere packaging (MAP) for ambient temperature preservation. Its core principle is to adjust the gas composition (such as the ratio of oxygen, carbon dioxide, and nitrogen) within the packaging to inhibit microbial growth and delay oxidation reactions, thereby extending the food's shelf life. However, this technology requires high barrier properties in the packaging materials and necessitates the use of sterilization and gas-filling equipment, resulting in high equipment costs. It is generally more suitable for use in central kitchens. The other method uses quick-freezing technology combined with low-temperature resistant packaging materials to significantly extend the food's shelf life and maintain its quality. However, this technology requires cold chain logistics for distribution, and in situations where ambient temperatures are difficult to maintain, frozen food may thaw and spoil.

[0003] In summary, current common packaging solutions cannot meet the needs of selling and storing Chinese-style fermented pasta with or without filling at room temperature after being removed from cold chain storage and transportation, without increasing costs too much. Therefore, a new packaging structure needs to be designed. Summary of the Invention

[0004] This utility model provides a rigid packaging structure for preserving the shape and locking in the freshness of fermented pasta, which solves the technical problems existing in the prior art. It has the characteristics of simple structure, convenient operation and low cost of use, and the pasta dough and fillings can be extended in terms of shelf life without the addition of any preservatives.

[0005] This utility model includes the following technical solution: a rigid packaging structure for preserving shape and locking in freshness of fermented pasta, comprising a holding unit, a sealing cap, a flexible breathable cover, and a fixing device; the flexible breathable cover is placed between the holding unit and the sealing cap, and the flexible breathable cover is fixed to the holding unit by the fixing device; when steaming the pasta, the holding unit is not sealed, and after steaming, the flexible breathable cover and the sealing cap are sequentially installed on the top of the holding unit to seal and secure it.

[0006] Furthermore, the holding unit is a high-temperature resistant open box to facilitate sterilization by high-temperature steam.

[0007] Furthermore, the box body is made of polypropylene plastic, bamboo, or borosilicate glass or stainless steel. Borosilicate glass and stainless steel boxes can be recycled and reused.

[0008] Furthermore, the box body is cylindrical in shape.

[0009] Furthermore, the size of the sealing cover matches the top opening of the holding unit, and the inner side of the sealing cover is provided with threads or grooves that match the outer side of the holding unit, so as to fix the flexible breathable cover together with the holding unit.

[0010] Furthermore, the fixing device is a fixing ring or fixing rope, used to securely fix the flexible breathable cover to the opening of the holding unit.

[0011] Furthermore, the flexible breathable cover is made of fiber cloth, polytetrafluoroethylene (PTFE) membrane or glass fiber paper, which has breathable properties and can prevent external impurities from entering the holding unit.

[0012] The advantages and positive effects of this utility model are as follows:

[0013] 1. This utility model adopts a combined preservation packaging structure, which places cooked, additive-free Chinese fermented stuffed pasta into the holding unit, and sets a flexible breathable cover on the top of the holding unit to meet the ventilation requirements. The holding unit is sterilized at high temperature while the pasta is steamed. After the pasta is steamed, a sealing cover is installed on the top of the flexible breathable cover. After the whole thing cools to room temperature, the sealing is good, which extends the shelf life. In addition, it also saves transportation costs after being removed from cold chain transportation.

[0014] 2. This utility model helps to maintain the flavor and quality of freshly made pasta, and is easy to carry, easy to sell as a souvenir, and maintains the integrity of the pasta's shape (it will not be squeezed or deformed due to vacuuming, high temperature and high pressure, etc.). This utility model has the characteristics of simple structure, convenient operation and low cost of use. Moreover, the pasta dough and filling do not need to add any preservatives to extend their shelf life. It is of great significance for the market promotion and sales of Chinese fermented filled pasta, and can expand the sales scope of the product. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of the present invention in its unsealed state;

[0016] Figure 2 This is a schematic diagram of the overall sealed state of this utility model;

[0017] In the diagram, 1-box body; 2-sealing cover; 3-flexible breathable cover; 4-fixing device. Detailed Implementation

[0018] To further disclose the invention content, features, and effects of this utility model, the following examples are provided in conjunction with the accompanying drawings for detailed description. In the following description of the embodiments, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this patent and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0019] In the following description of the embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0020] Example: See Appendix Figure 1-2 A rigid packaging structure for preserving the shape and freshness of fermented pasta includes a holding unit, a sealing lid 2, a flexible breathable cover 3, and a fixing device 4. The flexible breathable cover 3 is placed between the holding unit and the sealing lid 2, and is fixed to the holding unit by the fixing device 4. The fixing device 4 is a fixing ring or fixing rope (a fixing ring is shown in the illustration in this example, but a flexible rubber ring can be used) used to firmly fix the flexible breathable cover 3 to the open part of the holding unit. When steaming the pasta, the holding unit is not sealed. After steaming, the flexible breathable cover 3 and the sealing lid 2 are installed sequentially on the top of the holding unit to seal and secure it.

[0021] The holding unit is a high-temperature resistant open box 1, which facilitates sterilization by high-temperature steam. The box 1 is made of polypropylene plastic, bamboo or borosilicate glass, or stainless steel. When polypropylene plastic is used, a seamless disposable box 1 can be made; when bamboo is used, a disposable box 1 can be made directly from bamboo tubes; the boxes 1 made of borosilicate glass and stainless steel can be recycled and reused. The box 1 is cylindrical in shape.

[0022] The size of the sealing cover 2 matches the top opening of the holding unit, and the inner side of the sealing cover 2 is provided with threads or grooves that match the outer side of the holding unit, so as to fix the flexible breathable cover 3 together with the holding unit. The flexible breathable cover 3 is made of fiber cloth, polytetrafluoroethylene (PTFE) membrane or glass fiber paper, which has air permeability and can prevent external impurities from entering the holding unit.

[0023] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications under the guidance of the present invention without departing from the spirit and scope of the claims. These modifications all fall within the protection scope of the present invention.

Claims

1. A rigid packaging structure for a shaped, shelf-stable, fermented cereal product, characterized in that: It includes a holding unit, a sealing cover, a flexible breathable cover, and a fixing device; the flexible breathable cover is placed between the holding unit and the sealing cover, and the flexible breathable cover is fixed to the holding unit by the fixing device.

2. A rigid packaging structure for a shaped, shelf-stable, fermented cereal product according to claim 1, characterized in that: The holding unit is a high-temperature resistant open box.

3. The rigid packaging structure for shape-preserving and freshness-locking fermented pasta according to claim 2, characterized in that: The box is made of polypropylene plastic, bamboo or glass, or stainless steel.

4. A rigid packaging structure for a shaped, shelf-stable, fermented cereal product according to claim 2, characterized in that: The box is cylindrical in shape.

5. A rigid packaging structure for a shaped, shelf-stable, fermented dough food product according to claim 1, wherein: The size of the sealing cap matches the top opening of the holding unit, and the inner side of the sealing cap is provided with threads or grooves that match the outer side of the holding unit.

6. A rigid packaging structure for a leavened, shaped, fresh bakery product according to any one of claims 1-5, characterized in that: The fixing device is a fixing ring or a fixing rope.

7. A rigid packaging structure for a shaped, shelf-stable, fermented dough food product according to claim 6, wherein: The flexible breathable cover is made of fiber cloth, polytetrafluoroethylene film or glass fiber paper.

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