Adopting the heating mode of high-temperature steam jet, high-temperature steam can fully and quickly enter the surface and interior of food without destroying the nutritional components of food, so that it can maintain the original flavor of food; Multi-layers of the steamer don't smell each other, and the nutrition is not lost. Cooking food in the original pot, the food does not age, scorch skin, and pour soup, which is more delicious. When heated again in the original pot, the meat quality of food can be kept delicious, and good soup and vegetables are more delicious.