Blue crabs usually hibernate in a low-temperature refrigerated environment. The blue crab may not move at this time, but it is still alive. In this case, the blue crab can continue to eat.

If the blue crab died because of improper cryopreservation, then it is necessary to judge whether it can be eaten according to its state. If it smells good, it can continue to eat. If it stinks, it can't continue to eat.

2 How to judge how long the blue crab has been dead? You can pinch the shells of some blue crabs.

If you want to judge how long the blue crab has been dead, I suggest that you can hold the shell of the blue crab with your hands and judge it according to the hardness of the shell.

For a live blue crab, its shell and legs are hard, and the sound is heavy when it is knocked; For the stale blue crab, its shell and legs are soft when pressed, and hollow when knocked. Generally, the longer you die, the softer its shell will be.

Can the blue crab 12 hour die? It is not recommended to eat any more.

Blue crabs grow up in seawater, which contains more protein. If the blue crab dies, the bacteria on the surface of the blue crab will grow rapidly and produce some toxic metabolites.

And the histidine contained in the blue crab will be decomposed into toxic histamine at this time. If you continue to be eaten by the human body at this time, you may have gastrointestinal discomfort symptoms such as abdominal pain, diarrhea, nausea and vomiting. It is not recommended to continue eating the blue crab that has been dead for 12 hours.

How to keep the blue crab alive for a few more days 1? Marine culture: Blue crab is a kind of seafood, which lives in seawater. If you want to let the blue crabs live for a few more days, it is suggested that they can be cultured in the sea. If there is no seawater, you can also use a certain concentration of salt water to simulate its growth environment.

2. Refrigeration: In addition to mariculture, blue crabs can also be stored in the refrigerator, but before storage, they need to tie their hands and feet with ropes, and then cover the surface of blue crabs with wet towels to reduce their physical strength and respiratory consumption.