Now kill a fresh crucian carp, the fish must be fresh, so as not to smell fishy; When buying fish, ask the boss to clean it up for you, remove scales and gills, and open your stomach and clear your intestines; When you get home, you must clean the black film in the fish belly. The store didn't have time to deal with it so carefully. Wash the fish with water several times, and then use a clean cloth or kitchen paper towel to absorb the water on the surface of the fish. After the fish is dried, gently pat a layer of dry starch on the surface, just a thin layer, not much; Put oil in the pan, heat the fish and fry it in the pan. When frying, use medium fire or medium fire. First, the fish will set quickly, and second, it will help the soup become thick and white. Fry the fish on both sides, then pour boiling water into the pot, put two pieces of ginger, and open the fire; Just put two pieces of ginger. The fire makes the fish soup boil, and the crucian carp soup can be stewed in about 25 minutes. Before 10 minutes, the fire must be turned on to keep the fish soup boiling.