In the field of food processing, vacuumizing is very common in prepackaged foods. Extending the shelf life is related to vacuumizing or not, but the correlation is not particularly great. Vacuum separates food from air, but some anaerobic bacteria can also deteriorate food, but most aerobic bacteria lose their living space. But also isolated from the air, it can reduce the oxidation speed of food and prevent moisture and moisture, thus ensuring the best taste. In addition, the small and exquisite packaging is also convenient for storage and transportation, which will attract consumers to buy!

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