Tin foil, also known as aluminum foil, is a thin sheet made from aluminum metal. It is commonly used in cooking and food storage because it can withstand high temperatures and is resistant to moisture. Its reflective surface helps to keep food warm and can also be used to line baking trays. In addition to culinary uses, tin foil has various applications in households and industries. It can be used for insulation, to wrap items for protection, and even in arts and crafts. Its versatility makes it a staple in many kitchens and workshops around the world.