Steam cookers are kitchen appliances designed to cook food using steam. They typically consist of a water reservoir that heats up to create steam, which then circulates through food placed in a perforated basket. This method helps retain nutrients and flavors, making it a healthy cooking option for vegetables, fish, and grains. Many steam cookers come with multiple tiers, allowing you to cook different foods simultaneously. They are often easy to use, with simple controls for setting cooking times and temperatures. Popular brands include Cuisinart and Hamilton Beach, which offer various models to suit different cooking needs.