2, sea cucumber is rich in nutritional value, the most common problem is that you can't eat it, especially fresh sea cucumber. After buying it back, open the intestines in time to remove impurities, so as not to lose weight easily or even dissolve into liquid. Then put it in boiling water until it shrinks and is elastic, and then put it in rice washing water for an hour or two until it is soft and tender, which can not only soften the sea cucumber, but also remove the fishy smell of the sea cucumber. Finally, soak in water for a day or two, and when it gets bigger, you can also cook all kinds of delicious food.