A food steamer is a kitchen appliance designed to cook food using steam. It typically consists of a water reservoir and one or more tiers of baskets where food is placed. As water heats up, steam rises and cooks the food evenly while preserving nutrients, flavor, and texture. Food steamers can be used for a variety of ingredients, including vegetables, fish, and rice. They are often preferred for healthy cooking, as steaming requires little to no added fats. Many modern steamers come with timers and settings for different types of food, making them user-friendly and efficient.