The KitchenAid KHMC1857BSS Microwave Hood Combination Oven features convection cooking which provides more even results in less time and allows this microwave to act as a second oven. The add-a-minute control adds time in one-minute increments during or at the end of a cycle. With auto-cook, reheat, and defrost cycles it adjusts the cook time and power based on quantity, weight, or humidity released. Its true 10-level power control helps to eliminate cold spots and overcooked edges. Best of all the Sensor Steam/Simmer Cook cycle provides precise steaming for a variety of food types.