Now the use of vacuum bags has penetrated into various industries. Whether it is in supermarkets or markets, various foods packaged in vacuum bags can be seen everywhere. Although they are widely used, the main aspect is the packaging of food, so why vacuum bags can be used in food packaging. Broad application?
Since it is called a vacuum packaging bag, it must have removed the air inside. Obviously, oxygen does not exist. We all know that the deterioration of food is mainly caused by microbial activities. Without oxygen, the microorganisms will lack a living environment, and the food will naturally can be stored for a long time.
Vacuum can also prevent the oxidation of food, such as some lipids, to prevent its rancidity, and vitamins and the like, which are easy to change color. With vacuum packaging bags, the color and aroma of food can be effectively maintained.
The vacuum bag has a high barrier and has the effect of blocking moisture and oxygen. The interior itself blocks these. In addition, it has double protection and stable performance. It can withstand low temperature refrigeration and oil invasion.
Some vacuum bags also have the function of moisture-proof, and of course there are also high-temperature resistant ones. With the traditional sterilization method, food can be better preserved.