Sea cucumbers have a shelf life. Live sea cucumbers are not easy to preserve and should be consumed as soon as possible; the shelf life of dried sea cucumbers needs to refer to the way of preservation, and should not be consumed if there is mold or moisture return. 1. Sea cucumbers are not easy to be preserved because of autolytic phenomenon after they are caught from seawater. Even under the best conditions of adding ice and oxygen, it can only survive for 7 hours at most. Therefore, raw sea cucumber is often made into dried sea cucumber and other sea cucumber products. 2. Dried sea cucumbers need to be preserved properly, such as dry and ventilated, they can be stored for a longer period of time. If dried sea cucumbers are moldy and return to moisture, it means that they are not preserved properly and the sea cucumbers have deteriorated, so it is not recommended to consume them again. 3. For sea cucumber that has been well preserved, you can wrap it in a clean wet towel, put it into a preservation box and put it into the refrigerator, so that it can be stored for two or three days in general.