Catfish and grass carp. According to the public comment network, the authentic grilled fish in Yunyan District of Guiyang City is the earliest grilled fish specialty in Guiyang. Catfish and grass carp are commonly used, and their main characteristics are hemp, spicy, fresh and fragrant. The grilled fish is tender and smooth, so it won the support of the masses in Guiyang. Grilled fish is a special dish that originated in Wuxi County of Chongqing and developed in Wanzhou. In the process of its spread, it combines three cooking techniques: pickling, roasting and stewing, and fully draws lessons from the characteristics of Chongqing traditional cuisine and Chongqing hot pot. It is a delicious and nutritious flavor food. The main raw materials are fish, potatoes and tofu. It is a method of roasting first and then cooking, which realizes "one roasting and two stewing".