Sea cucumbers cannot be eaten if they have been frozen for three years.

1. Sea cucumbers are mainly divided into dried sea cucumbers, ready-to-eat sea cucumbers, and fresh sea cucumbers. Under normal circumstances, dried sea cucumbers can be frozen for 2-3 years, and ready-to-eat sea cucumbers can be frozen for 6-12 months. They cannot be frozen beyond this period. Continue to eat. Fresh sea cucumbers usually cannot be frozen and should be processed and eaten immediately after purchase.

2. Dried sea cucumbers: Dried sea cucumbers are generally processed with salt or sugar. The meat of dried sea cucumbers has dried up and is coated with salt on the outside. It is easy to store and not easy to deteriorate. It can be frozen for a long time. It can be sealed and stored in a frozen environment of -18℃ for 2-3 years.

3. Ready-to-eat sea cucumbers: Ready-to-eat sea cucumbers refer to processed sea cucumbers that can be eaten immediately after heating. They have a relatively short shelf life and can generally be frozen for 6-12 months.

4. Fresh sea cucumbers: Fresh sea cucumbers refer to sea cucumbers that have not undergone any processing. It is generally recommended to process and cook them directly after purchase. They cannot be frozen and stored. If they are stored for too long or are stored improperly, they will undergo autolysis. Shelf life is very short.