1, first of all, put the sea cucumber into an oil-free vessel to foam for 24 hours;

2, after 24 hours of foaming, pinch the sea cucumber with your hand, if you find there are still hard lumps, then continue to soak until there are no hard lumps;

3, cut open the sea cucumber, remove the sandy beak of the sea cucumber and clean it well;

4, put the cleaned up Put the cleaned sea cucumber into a pot and simmer it in boiling water for 25-30 minutes, turn off the fire and cover it with a lid to smother it for 2 hours;

5. Continue to soak the simmered sea cucumber in ice water for 24-48 hours, and change the water every 8 hours.