Steamed crabs are usually cooked in a steamer. Steamer is a specially designed cooker with a steaming layer at the bottom and a lid, which can be used to cook food. When steaming crabs, put the crabs into the steaming layer, add appropriate amount of water, then cover them and cook them over high heat. The steamer can keep the crab meat fresh and tender, and the crab juice will not lose too much during cooking. So steamed crabs are suitable for cooking in a steamer.