Strainers, also known as SIEVES, are tools used to separate solids from liquids. They are typically made of metal or plastic mesh and are used to strain out large particles from a liquid or other substance. SIEVES are commonly used in cooking, baking, and other food preparation tasks. They can also be used to filter out debris from water, such as sand or dirt. Strainers are also used in industrial processes, such as filtering out impurities from oil or other liquids.