Canisters are containers designed to store various items, often used in kitchens or laboratories. They come in different shapes, sizes, and materials, such as glass, plastic, or metal. Common uses include holding food items like flour, sugar, or coffee, helping to keep them fresh and organized. In addition to food storage, canisters can also be used for non-food items, such as craft supplies or small tools. Some canisters are airtight, which helps to prevent moisture and pests from entering. Overall, canisters are practical solutions for maintaining order and preserving the quality of their contents.