Strainers are kitchen tools used to separate solid particles from liquids. They come in various forms, such as mesh, colander, or fine sieve, and are commonly used for tasks like draining pasta or rinsing fruits and vegetables. The mesh material allows liquid to pass through while retaining larger solids. In addition to cooking, strainers are also used in other fields, such as brewing and chemistry. In brewing, they help filter out hops and sediment from beer, while in chemistry, they assist in separating mixtures during experiments. Their versatility makes strainers essential in both culinary and scientific applications.