Sea crabs can generally be preserved by including, but not limited to, frozen preservation, refrigerated preservation, and preservation in water-filled containers. Sea crabs generally should not be preserved for too long, it is recommended that the maximum preservation time of about three days, after the death of the sea crab body is prone to secretion of toxic substances as well as breeding bacteria, should not be eaten.
How to preserve sea crabs
General freezing and refrigeration are mostly used to preserve less active crabs, which are usually about to lose their lives, and freezing or refrigeration can maximize the freshness of the crabs in the process from dying to death.
The most common water containers used for preserving crabs are buckets and bathtubs. When using buckets for preservation, the water in the buckets should not go over the crabs, otherwise the crabs may die from lack of oxygen, and the same applies to bathtubs.