vacuum bag

Food vacuum bags prevent the oxidation of food by inhibiting the growth and reproduction of microorganisms, thereby achieving the function of food preservation. According to the shape, it can be divided into two categories: glossy bag and textured bag, and according to the material, it can be divided into two categories: polyester bag (PET+PE) and nylon bag (PA+PE). Polyester bags are less expensive and are usually used for refrigeration and are not suitable for foods that need to be frozen. Nylon bags have better toughness and are the first choice for frozen foods.
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There are two kinds of vacuum bags on the market, one is called smooth vacuum bag, and the other is called textured vacuum bag. Both of these can be vacuumed, but they need to be matched with different machines. Glossy vacuum bags require a special vacuum machine for smooth surfaces. Texture vacuum bags require a special vacuum machine for textures.