What is the purpose of aluminum foil?

Aluminum foil is primarily used for its heat conductivity and reflective properties. It is commonly used in cooking and baking to wrap or cover food, ensuring even heat distribution and preventing food from drying out. It is also used to line baking sheets to catch drips and make cleanup easier. Additionally, aluminum foil is used for food storage, to keep food fresh by sealing in moisture or preserving odors. It is also utilized in various industrial processes due to its malleability and resistance to corrosion.