A "Tin Can" is a container made from thin metal, typically used for preserving food. It is sealed to keep contents fresh and safe from bacteria and spoilage. The process of canning involves heating the food inside the can to kill harmful microorganisms, allowing it to be stored for long periods without refrigeration. Tin cans are commonly used for a variety of products, including vegetables, fruits, soups, and beverages. They are often made from steel coated with a thin layer of tin to prevent rusting. The design of tin cans allows for easy stacking and storage, making them a popular choice in both homes and grocery stores.