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Why does food need vacuum packaging?

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Why does food need vacuum packaging?

also known as decompression packaging, it 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 a high degree of hypoxia will cause physiological diseases. Therefore, less fruits use vacuum packaging.

firstly, vacuum packaging plays a role in prolonging the shelf life of food. When vacuum packaging is added to the preserved, it can prolong the effect by 3-5 times than that at room temperature

vacuum packaging can prevent bacterial invasion. Vacuum packed bags can effectively isolate bacteria and oxygen

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prevent food frostbite. Putting vegetables directly into the refrigerator can easily cause food frostbite. Because the vegetables are too close to the inner wall of the refrigerator and the temperature is too low, food frostbite is caused

prevent cross smell. All kinds of vegetables are easy to lose nutrition

save you money. For example, improper storage of cooked food, fruits and vegetables, dried goods, medicinal materials, etc. in the refrigerator can easily lead to food waste. Vacuum packaging can save you money

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