Can't eat, the dead crab body will produce a large amount of histamine. People who consume dead crabs can develop histamine poisoning. Because histamine is an allergic poison, it can also be called allergic food poisoning. Don't think it doesn't matter if you eat just a little bit of dead crab meat.

People who are allergic to histamine can have a reaction to even one bite. For example, symptoms such as flushed cheeks, flushed skin and conjunctival congestion on the chest as well as the whole body, as well as headache, dizziness, tightness in the chest, generalized weakness and irritability can appear within 10 minutes to three hours of eating dead crabs.

Extended information

Crayfish, crabs, screws, shellfish, fish, etc. may carry parasites, and if you eat raw or eat undercooked, it is very easy to get infected with parasites.

Eating crabs should pay attention to the following points:

1, thoroughly cooked. Steam the crabs continuously at a high temperature of 100 degrees Celsius for 20 minutes to 30 minutes.

2, do not eat drunken crab, cold raw crab.

3, choose fresh crabs and wash them before putting them in the pot.

People's Daily Online - Why dead crabs should not be eaten