1. Wash the prepared sea cucumber and put it in a bowl. Add water to sea cucumber, put it in the refrigerator and cover it with plastic wrap for 48 hours, and change the water for 2-3 times.
After 2.48 hours, take out the sea cucumber, cut off the thread behind the sea cucumber and rinse it with clear water.
3. Leave the inner tendon of the sea cucumber and wash away the sediment on it.
4. Cut the sand mouth of the sea cucumber with scissors.
5. Put the purified water and the processed sea cucumber into the pot.
6. Cover and boil over high heat, then turn to low heat and cook for another 30 minutes.
Turn off the fire for 2 hours after 7.30 minutes.
8, 2 hours later, take out the sea cucumber, add purified water without sea cucumber and continue to soak for 48 hours, changing the water twice during this period.
After 9.48 hours, the sea cucumber will be badly soaked. Wrap it in plastic wrap or box and put it in the refrigerator for freezing.