A steamer is a type of cookware designed to cook food using steam. It typically consists of a pot with a lid and a perforated insert that holds the food above boiling water. This method of cooking helps retain nutrients and flavors, making it a popular choice for preparing vegetables, fish, and dumplings. Steamers can be made from various materials, including stainless steel, bamboo, and silicone. Some steamers are designed to fit over pots, while others are standalone appliances, such as electric steamers. Using a steamer is an efficient and healthy way to prepare meals without added fats or oils.