Don't open fresh live sea cucumbers in the refrigerator. Put in a pressure cooker and cook in seawater for 10- 12 minutes. Quickly cool with cold water and put it into pure water or mineral water. It can be stored in the refrigerator for about 15 days. Note that it is best to change the water every day. If shipped outside, you can put the live sea cucumber in an incubator and keep it with ice for about 24 hours.
If they are all alive, keep them first. You can keep them in a plastic bucket filled with tap water and salt for a short time. The suitable water temperature is 0℃ ~ 28℃ and salinity is 28 ‰ ~ 3 1 ‰. In this way, sea cucumbers will be preserved for a long time. Don't worry if you can't finish it. Save your sea cucumber quickly.