Because the degree of high temperature resistance of different products varies, it is important to pay close attention to the requirements for packaging materials. Different products should be selected based on their characteristics, including whether they undergo simple transformation, factors that cause transformation (such as light, water, or oxygen), product shape, surface hardness, storage conditions, sterilization temperature, etc. A good vacuum bag does not necessarily have many functions, but rather depends on whether it is suitable for the product. 1. Products with regular shapes or soft appearances: For products with regular shapes or soft appearances, such as sausage products, soy products, etc., there is no need to require high mechanical