1, prepare pure water, oil-free utensils, light dry sea cucumber, put sea cucumber into pure water, put it into refrigerator to keep it in cold storage, and change the water once every 12 hours, soak it for 2-3 days, and then the sea cucumber can be without hard heart.

2. Cut the sea cucumber longitudinally along the abdomen, cut off the sand spout, remove the debris inside, and cut the inner tendons horizontally into three or four equal parts.

3. Put the sea cucumber into an oil-free pot, fill it with pure water, and boil it over high heat, then switch to low heat and cook it for 30-50 minutes until the sea cucumber becomes soft.

4: Turn off the heat and let the sea cucumber smother in the pot for 3-4 hours, until the sea cucumber cools naturally.

5. Refill the boiled sea cucumber with purified water, put it into the refrigerator and continue to soak it for three days, changing the water every 12 hours during the period, and then consume it when finished.

5. Put the uneaten sea cucumber into the refrigerator for freezing and preservation.