Sifters are simple kitchen tools used to separate and break up clumps in dry ingredients like flour, sugar, or cocoa powder. They work by allowing fine particles to pass through while retaining larger pieces. This process helps create a smoother texture in baked goods and ensures even mixing of ingredients. There are different types of sifters, including hand-held models and those that are built into mixing bowls. Using a sifter can enhance the quality of your baking, making it an essential tool for anyone who enjoys cooking, from beginners to experienced bakers like Julia Child or Mary Berry.