It takes 30-60 minutes for dried sea rainbow to soak. You should soak your hair in warm water first, and you can soak it in cold water in summer. When eating dried sea rainbow, soak it in warm water for a while, and soak it in cold water in summer. Remove the hairy gastrointestinal yarn from the sea rainbow, clean it with clear water, boil the sea rainbow in water for two minutes, and finally take it out and rinse it with clear water before frying it.