Cooking vessels are essential tools for preparing food. A STEAMER is a vessel with a perforated bottom that is used to cook food by allowing steam to pass through it. An OLLA is an earthenware POT used for cooking and storing food. A wok is a round-bottomed cooking vessel originating from China, used for stir-frying, deep-frying, and steaming. A POT is a large metal container with a handle and a lid, used for boiling liquids or cooking food. A PAN is a shallow, flat-bottomed cooking vessel with a long handle, used for frying, baking, and roasting. A stockpot is a large POT with a lid, used for making stocks, soups, and stews. A saucepan is a shallow, round-bottomed cooking vessel with a lid, used for simmering sauces and other liquids. A KETTLE is a metal POT with a lid and a spout, used for boiling water. A STEWPOT is a large, deep POT with a lid, used for making stews.