A special casserole, also known as Jianshui Steam Boiler, is commonly used under Yunnan Steam Boiler. This kind of steamer is characterized by using the bell mouth at the bottom of the casserole to collect the steam from the bottom pot, and then cooking the food, which is delicious. Yunnan steamer is an earthenware steamer specially used for cooking food. The earthenware steamer with Jianshui will taste more authentic.