Tin foil: A type of metal paper coated or pasted with a film like silver, mostly silver white, actually aluminum foil. Aluminum foil, also known as aluminum foil, is a tool made of flattened metal aluminum in Hong Kong. It is mainly used for cooking in kitchens, serving food, or making materials that can be easily cleaned.

Countless tons of aluminum foil are used worldwide to protect and package food, cosmetics, and chemicals. Most aluminum foil paper is shiny on one side and gray on the other. Aluminum foil used for food can wrap food on both sides, and it is generally recommended to wrap it with bright bread to improve heat conduction.

Most of the aluminum foil paper is glossy on one side and matte on the other side. Aluminum foil used for food can wrap food on both sides, and it is generally recommended to wrap it with bright bread to improve heat conduction. Aluminum foil paper is pressed out of aluminum blocks using a rolling machine, then cut into the required length and width, and then rolled up, packaged, and sold.

At the beginning, tin foil was really made of tin. Tin foil was softer than aluminum foil, and wrapping food would have a slight smell of tin. However, due to its low melting point, tin foil cannot be heated, or its high heating temperature - such as starting to become brittle above 160 ℃ - its use in food packaging was limited. If food needs to be roasted, tin foil cannot be used when baking food. Since the introduction of aluminum foil, it only begins to melt when heated to above 660 ℃ due to its high melting point, making it suitable for general barbecue food, baked goods, and even traditional beggar chickens that use aluminum foil to wrap and bake.