2. There is an autolytic enzyme in sea cucumber. Fresh sea cucumbers should be treated as soon as possible after fishing, otherwise they will melt quickly, so many people can buy fresh sea cucumbers.

3. Fresh sea cucumber is rich in high protein, which is difficult to be digested and absorbed by human body. It is best to turn it into dry sea cucumber after processing. Dry sea cucumber soaked in water is more conducive to human absorption, while fresh sea cucumber is not easy to cook and can't master the heat. People with a slightly bad stomach will have diarrhea after eating it.