2, in Guizhou sour soup fish this dish, after the fish selection, the production of sour soup is also very important. In the beginning, the sour soup was made with the tail wine after brewing, and then after continuous improvement, it began to be made with the natural fermentation of hot rice soup. Sour soup fish in the sour soup in this dish also plays a very key role, sour soup can also be said to be a specialty of Guizhou products, Guizhou people for sour soup is also very favorite. Guizhou sour soup fish in the production process, for the sour soup and fish are very high requirements. Because in the process of making fish in sour soup, the fish need to be cleaned and put into the sour soup for cooking, so the taste of the sour soup will affect the taste of the whole dish. In the choice of fish, sour soup fish generally choose grass carp, carp this kind of fat fish, because this fish in the production of sour soup fish, in the taste will be more refreshing, but also more will get the diners like.