A very unique pressure cooker indeed, it's a 5 in 1 pressure cooker, steamer, slow cooker, rice maker, and browner. It warms and keeps it warm for a very long time. This pressure cooker is extremely safe, healthy, and is a faster way to cook. Once the pressure cooker is locked and the cooking cycle begins, air is exhausted automatically and then the steam is sealed inside creating pressure. The pressure regulator keeps the pressure inside the cooker at a safe level. This all digital 5 in 1 is the very top technology offered today. It has a timer as well that controls the cooking. It's a must have.