Which universal vacuum sealer bags need to be vacuumed?

　　First of all, the main purpose of vacuuming in the design of universal vacuum sealer bags is to prevent the contact of air with food, slow down the oxidation of food, thereby avoiding the growth of microorganisms and a means of spoiling food. But one thing we must understand is that many people think that vacuuming will inhibit the growth of bacteria in food. In fact, vacuum does not stop the growth of bacteria, but slows down the growth of microorganisms that depend on oxygen for survival. Therefore, in order to extend the shelf life of food, it is necessary to disinfect and sterilize the food. After treatment with high temperature heating or ultraviolet light irradiation, the food packaging bag is used to pack and vacuum, so as to achieve the effect of extending the shelf life of the food.

　　After we understand why universal vacuum sealer bags need to be vacuumed, let's understand which foods need vacuum packaging bags. Whether to vacuum depends on the characteristics of the food and the length of time it takes to preserve it. Fresh foods like the fresh foods we often see in supermarkets are not suitable for vacuum packaging. On the one hand, it will destroy the taste of the food; on the other hand, the food itself The shelf life is very short, and the shelf life of generally extended food after vacuum packaging will not be too long. The shelf life of marinated or pickled foods such as chicken feet and pig's feet can be greatly extended after vacuum packaging, so it is necessary to use universal vacuum sealer bags for vacuum packaging. There is also a type of food that also requires vacuum packaging-whole grains, which are generally stored in a dry environment while inhibiting the growth of microorganisms, so vacuum packaging is necessary.

　　In addition, some universal vacuum sealer bags we see in supermarkets are bulging and contain gas. This is another anti-corrosion method, which uses some inert gas to flush food packaging bags, such as commonly used nitrogen, carbon dioxide, etc. Single or combined gas, this cost is also relatively low, and it is mostly used in puffed food packaging to keep food dry and prevent food from spoiling. I’m going to introduce you here today, if you need customized food packaging bags, please contact us.