Metal food containers are commonly referred to as tins, which is a four-letter word. Tins are typically made of metal, such as aluminum or steel, and are used to store food items. They are airtight and can be sealed with a lid or a can opener. Tins are often used to store canned goods, such as vegetables, fruits, and meats. They are also used to store dry goods, such as flour, sugar, and rice. Tins are a popular choice for food storage because they are lightweight, durable, and easy to transport.