Can sea crabs be frozen and preserved?

Many people in our lives like to eat crabs, especially the crab legs. After opening the crab claws, the meat inside is fresh and tender, tastes particularly good, and is rich in nutritional value. However, there are certain precautions when storing sea crabs. You should choose a space suitable for their storage, otherwise it will deteriorate very easily. So, can sea crabs be frozen?

Raw crabs: Crabs need to be frozen before long-distance transportation. Low temperature can inhibit the activity of fungi and parasites in crabs, and also delay the degradation of their own protein, thereby preserving them. It has almost no effect on their nutritional content and taste, so they can be eaten with confidence.

Cooked crabs: Cooked crabs can be eaten overnight, but putting them in the refrigerator does not mean putting them in a safe. Cooked crabs that are stored for too long can still be a killer that easily causes poisoning. The principle is histidine. In leftover crabs overnight, histidine will be decomposed into histamine by some microorganisms. Although reheating can kill pathogenic microorganisms, it cannot destroy the toxins. Therefore, eating cooked river crabs that have been stored for too long may also cause histamine poisoning. So as soon as possible.

Are the crabs in danger of freezing to death?

Short-term freezing will not kill you

Crabs are cold-blooded animals and will hibernate for self-protection when the temperature is low. If they are frozen for a short period of time, they will stay in the ice for less than 24 hours. Most hairy crabs will still be alive after thawing.

Long term freezing will kill you

After the crabs are frozen, if they are transported over long distances and stay in the ice for more than 48 hours, almost all of them will die. The cause of death is directly related to low temperature and lack of oxygen.