Why are the chemical properties of rectangular wrinkled aluminum foil food containers so stable?

The safety of rectangular wrinkled aluminum foil food containers first stems from its high-quality raw material - aluminum foil. Aluminum foil is a thin sheet material made of pure aluminum or aluminum alloy through a series of processes. During the production process, aluminum foil is rolled and stretched multiple times to form a tight, uniform metal structure. At the same time, the aluminum foil will also undergo a high-temperature annealing and disinfection process during the production process. This step not only enhances the mechanical properties of the aluminum foil, but also ensures the cleanliness and hygiene of its surface.
As a raw material for food containers, aluminum foil has significant advantages such as non-toxic, odorless, and no heavy metal pollution. It will not release harmful substances into food, nor will it chemically react with food, thus ensuring the original taste and safety of food. In addition, aluminum foil also has good ductility and plasticity, allowing aluminum foil food containers to easily adapt to food packaging needs of various shapes and sizes.
Aluminum foil is chemically very stable, making it long-term safe when in contact with food. There is a dense oxide layer on the surface of aluminum foil. This oxide layer has excellent corrosion resistance and oxidation resistance, and can effectively prevent the aluminum foil from being oxidized or corroded. Under normal conditions, no bacteria and microorganisms can grow on the surface of aluminum foil, which further ensures the hygiene and safety of aluminum foil food containers.
In addition, the melting point of aluminum foil is as high as 660°C, which allows it to maintain extremely high stability when serving meals or packaging food. Even under high temperature conditions, aluminum foil will not melt or produce harmful substances, thus ensuring the safety and quality of food during heating or cooking. This property makes aluminum foil food containers ideal for use in a variety of cooking and heating methods, such as ovens, microwaves (on certain settings), steamers, etc.