Crab legs remain fresh and safe to eat for up to 3 months in a freezer. They must be packaged properly to maintain the best quality.
Fresh crab spoils quickly. If it is to be frozen, crab should be cooked, wrapped and put into the freezer without delay. Cooked crab legs should be placed in a heavy plastic bag specifically designed for freezer storage. The bag should be labeled with the contents as well as the date it was placed into the freezer. The freezer's temperature should be between 0 degrees and -5 degrees Fahrenheit. Crab legs that have been frozen and thawed should not sit in the refrigerator. They should be used immediately.