Soft-shell crab is a crab located at the scaling stage. This process is called 'molting'. As the crab grows, it grows out of its jacket and it's time for a new look. The crab creeps out of the armor and is 'soft' at that stage. This crab will be 18 x for the first 3 years and will be very vulnerable during that period. The Soft Shell Crab is actually 'soft' periodically and is therefore seasonal. The best soft-shell crab comes from the waters of Alaska to Argentina and is better known as the Blue Crab and has a strong resemblance to the Blue swimmer crab which is also available as a 'soft shell'€ variant. Once the molting has occurred, the Soft Shell Crab is frozen immediately. Fresh the Soft Shell Crab is not traded.