Can you eat a crab after it's dead?

Generally speaking, if a crab has just died and has been properly stored, it is usually safe to eat. However, if the crab has been dead for a long time or improperly stored, it is not recommended for consumption. The detailed explanation is as follows:

If the crab died shortly after being caught—such as due to lack of oxygen during transportation—and was immediately placed under extremely low temperatures and quickly frozen, it is generally safe to consume. However, before eating, one should check that the crab has no unpleasant odor and that its appearance and color are normal to ensure food safety.

After death, bacteria in the crab begin to multiply rapidly, especially in warm environments, which may lead to food poisoning. If the crab has not been promptly refrigerated or frozen after death, and instead has been left at room temperature for an extended period or stored in unhygienic conditions, it can easily become contaminated by bacteria. In such cases, consumption is not advised.

It is recommended to select fresh, healthy crabs when purchasing and consuming. When cooking crabs, ensure they are thoroughly heated until fully cooked to promote health. In daily life, maintaining a light diet and increasing intake of vitamin-rich vegetables and fruits—such as tomatoes, carrots, grapefruits, and apples—can help boost immunity.