1, the crab frozen 5 months can not eat.

2, for crabs, it is best to eat now steamed. The cooked crabs that can not be eaten can be packed into clean airtight containers and put into the refrigerator in the cooked food area for cold storage and should be eaten as soon as possible, and the whole cooked crabs should be stored in the freezer for 1~2 days at the most.

3, crab: animal kingdom, arthropods, crustaceans, mollusks, true mollusks subclass, decapods, abdominal embryo suborder, short-tailed lower order. It is a crustacean, its body is protected by a hard shell, and it relies on gills to breathe. In biological taxonomy, it is in the same category as shrimp, lobster, and hermit crabs. The vast majority of species of crabs live in the sea or offshore areas, with some inhabiting freshwater or land. They depend on the mother crab to give birth to their young, and each time she lays many eggs, which can number millions or more.