Stew the fish head for 30-40 minutes. Usually when stewing fish head soup, the fish head will be fried first, and then cooked with water. At this time, the fish head is basically cooked when it is cooked. In this case, cooking is easier. Boil over high heat, add the prepared auxiliary materials, and turn to low heat to continue cooking for 30-40 minutes. Fish head soup does not need to be cooked for too long, otherwise it will easily lead to the aging of fish head soup, thus affecting its taste and reducing its nutritional value and edible value. Braised fish head is a special private cuisine with great nutritional value. The main ingredient is fish head, and it is very simple to make it by adding the right pepper according to the taste. Fish head is tender and nutritious, and contains protein, fat, calcium, phosphorus, iron and vitamin B 1, as well as lecithin that fish lack.