What is the principle of packing scale

What is the principle of the scale? It''s easy. Vacuum packaging scale is to put food into the packaging bag, and the air in the packaging bag is taken out to reach the predetermined vacuum, and then the sealing process is completed.

the main purpose of vacuum packaging scale is to remove oxygen and help prevent food deterioration. The principle is relatively simple, because the deterioration of food mold is mainly caused by the activities of microorganisms, and most microorganisms need oxygen for survival. Vacuum packaging uses this principle to remove oxygen from the interior of the package and the food pool, so that micro objects lose their "living environment", thus extending the shelf life.

in addition to inhibiting the growth and reproduction of microorganisms, vacuum packaging is another important function to prevent food oxidation. Because there are a lot of unsaturated fatty acids in oils and fats, they will be oxidized under the action of oxygen, which will change the taste and deterioration of food. In addition, oxidation can also lead to the loss of vitamins A and C. Unstable substances in food pigments will be affected by oxygen, which will darken the color. Therefore, vacuum packaging can effectively prevent food deterioration and maintain its color, aroma, taste and nutritional value.

the main function of vacuum packaging is not only the antioxidant and fresh-keeping function of vacuum packaging, but also the function of compression and fresh-keeping. It can effectively maintain the original color, aroma, taste, shape and nutritional value of food for a long time.

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