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How to use vacuum packaging bags correctly

  • Categories:Industry News
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  • Time of issue:2021-05-06
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(Summary description)The vacuum packaging bag is composed of several plastic films with different functions. Each layer of film plays a different role.Vacuum packaging bags are divided into transparent vacuum bags and aluminum foil vacuum bags.

How to use vacuum packaging bags correctly

(Summary description)The vacuum packaging bag is composed of several plastic films with different functions. Each layer of film plays a different role.Vacuum packaging bags are divided into transparent vacuum bags and aluminum foil vacuum bags.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2021-05-06
  • Views:0
Information

The vacuum packaging bag is composed of several plastic films with different functions. Each layer of film plays a different role.

Vacuum packaging bags are divided into transparent vacuum bags and aluminum foil vacuum bags. The composite material of vacuum packaging bags is a composite of PE and nylon. Nylon has good barrier properties, can effectively block moisture and gas, and can maintain a vacuum state for a long time. The plastic bag is just ordinary plastic. The surface of such a plastic bag has pores and cannot be vacuum-packed. Even if it is barely packed, it will leak after a long time, or even when it is packaged.

If you want to maintain the freshness of food for a long time, it can’t be achieved by vacuuming, because when the oxygen concentration in the packaging bag is ≤1%, the growth and reproduction speed of microorganisms will drop sharply, and when the oxygen concentration is ≤0.5%, it is large. Most microorganisms will be inhibited and stop reproducing, and vacuum packaging cannot inhibit the reproduction of anaerobic bacteria and the deterioration and discoloration of food caused by enzyme reactions. Therefore, it needs to be combined with other auxiliary methods, such as refrigeration, quick freezing, dehydration, high temperature sterilization, and radiation. According to sterilization, microwave sterilization, salting, etc.

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