Generally divided into 100°cooked sterilization bag, 121°high temperature sterilization bag, and 135°ultra-high temperature sterilization retort bag. It is generally used in various food packaging to kill most of the bacteria in the food and ensure consumer safety. Our high-temperature cooking bags produced by YiFu are made of NY+AL+RCPP special materials. After customers' vacuum and high-temperature cooking and sterilization, our bags will not be damaged. Because after the production of our bags is completed, we have special quality inspectors who will draw a certain proportion of the bags for vacuum high-temperature experiments to judge the quality of the bags, and then we will enter the warehouse and ship them.