Semi-dried sea cucumbers can be frozen and preserved. Unprepared semi-dried sea cucumbers must be stored in the refrigerator and cannot be stored at room temperature to prevent deterioration. Semi-dried sea cucumbers can also be prepared first and then stored. You can wash them with clean water first, cut them open along the incision and take out the sea cucumbers. Put the sea cucumbers into a pot and bring to a boil, then turn to low heat and simmer for 30-40 minutes, then turn off the heat. Let it cool naturally until the sea cucumber can be pinched through with your fingers. Add water and ice cubes and put it in the refrigerator to soak for 12 hours. It can be eaten directly after two days.