Food vacuum bags are generally usedpeComposite nylon material, if cooked food generally use pure aluminum material.Food vacuum bags are mainly beneficial to the storage of food and keep food fresh. Inhibits the reproduction of microorganisms such as bacteria. For some soft items, the volume can be reduced after vacuum packaging. So that the packaged items can reach”Four preventions, two provinces, one guarantee”Features: moisture-proof, mildew-proof, anti-pollution, anti-oxidation, volume-saving, freight-saving, and extended storage period. In the food industry, vacuum-packed food is very common. Various cooked products such as: chicken legs, ham, sausages, etc.; pickled products such as various pickles, various bean products, preserved fruits, etc. There are more and more foods that need to be kept fresh. Vacuum packaging is widely used, and the food in vacuum packaging has a long shelf life, which greatly extends the shelf life of food.And what harm is there if the food vacuum bag is unqualified? Unqualified food vacuum bags will affect the color, aroma and taste of food, which is not conducive to the marketing of food. Unqualified food vacuum bags will cause food to deteriorate, just like rotten rice and vegetables. It is conceivable what impact it will have on the body. And unqualified food vacuum bags produce toxic substances to contaminate food, causing serious damage to the body of the eater. Therefore, food vacuum bags with poor quality are very harmful.