Why can aluminum foil bags be used as food packaging bags? Why do food packaging bags use aluminum foil?
The aluminum foil of the 25KG aluminum foil bag for food is a flattened metal aluminum tool that can be used in the kitchen to cook, hold food, or make some materials that can be easily cleaned. Aluminum foil packaged foods on the market are generally heatable and can be stored for a long time. Most of the aluminum foil used in food processing has one side that is bright and the other side that is gray. Aluminum foil paper for food can be used to wrap food on both sides. It is usually recommended to wrap food on the glossy side to improve the heat conduction effect.
Moisture-proof aluminum foil bag
Why do food packaging bags use aluminum foil? This is because metal aluminum will be oxidized by oxygen, forming a dense protective film of aluminum oxide on the metal surface to prevent oxygen from continuing to oxidize the metal aluminum. Of course, packaging bags made of aluminum foil use this The dense protective film can effectively isolate outside air from entering the inside of the bag and prevent food from being oxidized and spoiled. On the other hand, aluminum foil has good ductility, excellent barrier properties, strong corrosion resistance, and good printing adaptability. Rather, it prevents food from reacting with oxygen.
