An idly steamer is a kitchen appliance used to prepare soft and fluffy idlis by steaming. It consists of multiple trays or plates with moulds where the idli batter is poured. The steamer uses water at the bottom to create steam, which cooks the idlis gently and evenly without using oil. Made from stainless steel or aluminum, it is durable, easy to clean, and suitable for both homes and commercial kitchens. Idly steamers come in different sizes, allowing large quantities to be made at once. Overall, it provides a healthy, efficient, and consistent method for preparing traditional South Indian idlis.