Eels can generally be stored in the refrigerator for 3 to 6 months. Under freezing conditions below -18°C, the shelf life of eels can be extended to 3 to 6 months, or even longer.
The time varies greatly under different storage conditions. If eels are placed in the refrigerator, they can generally be kept for 3 to 5 days; while in the freezer, they can be kept for 3 to 6 months. The specific shelf life will also be affected by factors such as the freshness of the fish and the storage method.