Reason: this layer of skin is tough, and it will be chewy if it is not cooked well. Therefore, generally speaking, it is best to remove the black skin from the body before cooking cuttlefish. Dried cuttlefish should be soaked in water one day in advance, and it takes about 8 hours to soak. During soaking, it is recommended to use hot water with a little baking soda to speed up the soaking, and change the water for the soaked cuttlefish every once in a while. Wash cuttlefish after soaking. The cuttlefish can be fried before eating. Because seafood is cold, cuttlefish is no exception, and it is not suitable for people with cold constitution or poor stomach to make soup directly, so it is better to fry cuttlefish for a few minutes before making soup, and then make soup.