Can I eat dead hairy crabs from Yangcheng Lake?
Based on the living habits of crabs, it is not recommended to eat dead crabs. Crabs love to eat rotten food and accumulate pathogenic bacteria and toxic substances in their bodies. Dead crabs can quickly harbor a large number of bacteria in their bodies and should not be eaten, especially when the weather is hot.
From the flavor point of view, crabs lose their original flavor when they are dead. There is also a histidine substance in crabs. Histidine is easily broken down and can produce histamine and ammonia-like substances under the action of decarboxylase. When a crab dies, its midgut gland will quickly fall apart and its histidine and digestive enzymes will spread out to break down the crab meat. That's why dead crabs taste weird and lose a lot of flavor.
The crabs themselves are non-toxic, but when they die and their shells are damaged, the proteins in the crab's body harbor bacteria, and the infected bacteria in the crab multiply, and the bacteria may produce toxins. Dead crabs may be poisonous.
The body of a crab is prone to carry heavy metals. When a crab dies, its midgut glands will quickly fall apart, and the digestive enzymes scattered inside will break down the crab meat. The intestinal gland is relatively easy to enrich with heavy metals, and when it rots, the heavy metals come out to create contamination.
Why can't Yangcheng Lake hairy crabs be eaten after death?
The main reason why dead crabs can't be eaten is that once a hairy crab dies in Yangcheng Lake, the bacteria inside the crab will multiply rapidly, decompose the crab meat and produce toxins. If someone eats such Yangcheng Lake hairy crabs, it will cause poisoning. Common toxic reactions include nausea, vomiting, diarrhea, and even dehydration, or even shock and coma.
Dead Yangcheng Lake hairy crabs cooked can still eat?
Maybe some people think that the dead Yangcheng Lake hairy crabs are poisonous, so they want to put them in a pot and boil them, thinking that this can kill the toxins or bacteria on the Yangcheng Lake hairy crabs. This is a mistake. Even after hours of cooking at high temperatures, the toxins on dead Yangcheng Lake hairy crabs can't be killed all the time, so it's still the same saying: don't eat dead crabs.
How to keep fresh Yangcheng Lake hairy crabs
1. If you need to keep the bought hairy crabs for 3-5 days, you can use a bathtub, a deep water tank or a big and deep plastic bucket at home.
2. Gently fish out the hairy crabs from the bathtub and other containers and put them into fresh water (tap water is recommended to dry them for 2 hours).
3. The water should not be too deep so that the hairy crabs can stand up and breathe on the surface.
4. If the storage time is long, it is recommended to put a small amount of small fish and shrimp in the water (go to the market and ask the aunt and uncle who sells fish to ask for some, a lot of people are free to give ~)
Generally, Yangcheng Lake hairy crabs with this method of storage for more than 7 days, the quality of the good quality of Yangcheng Lake hairy crabs storage viability can reach more than 95%.