When it comes to freezing live crabs, it's essential to do it quickly and correctly to maintain their quality. You should freeze them as soon as possible after catching, and make sure they're completely frozen within a few hours. This will help prevent the growth of bacteria and other microorganisms that can cause spoilage.
Now, you might be wondering, how long can you actually freeze live crabs? The answer is, up to 6 months! However, it's essential to note that the quality of the crabs may degrade over time, so it's best to cook them within 3 months for optimal flavor and texture.