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About vacuum packaging

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There is also a tin foil bag in a transparent bag. Inside the tin foil bag is processed lotus root and water. The tin foil bag is sealed. There is air and no water between the tin foil bag and the transparent bag, but they are sealed. Does this belong to vacuum packaging??

vacuum packaging, also known as decompression packaging, is to extract and seal all the air in the packaging container to maintain a high decompression state in the bag. The lack of air is equivalent to the effect of low oxygen, so that microorganisms have no living conditions, so as to achieve the purpose of fresh fruits and no disease and rot. At present, there are vacuum packaging in plastic bags, aluminum foil packaging, glassware, plastic and composite packaging, etc. Packaging materials can be selected according to the type of articles. As fruits are fresh food, they are still breathing, and high hypoxia will cause physiological diseases. Therefore, less fruits use vacuum packaging

1. It eliminates part of the air (oxygen) in the packaging container and can effectively prevent food corruption
2. The use of packaging materials with excellent barrier (air tightness) and strict sealing technology and requirements can effectively prevent the exchange of materials in the packaging content, avoid food weight loss and taste loss, and prevent secondary pollution
3. The gas inside the vacuum packaging container has been eliminated, which accelerates the heat conduction, which can improve the thermal sterilization efficiency and avoid the cracking of the packaging container due to the expansion of gas during heating sterilization

as long as it is well sealed, it belongs to vacuum packaging

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