Sihaiwang: summer is the best season to eat crayfish. At the same time, the crayfish is also very difficult to preserve in the high temperature of summer. Be sure to eat as soon as possible. What's the harm of eating dead crawfish?
How to distinguish the life and death of crawfish
What do crayfish think of life and death
&; &; &; &; &; &; &; &; 1. Form
When lobster is stationary, it can keep its shape when there are external objects close to it, but it is fresh lobster that can not be easily thrown around.
2. Look at the tail
When there is something near the tail of the lobster, the tail will open to the fresh lobster, and the tail closed to the lack of vitality of the lobster.
3. Look at Ao
The claws of the lobster will automatically go up with the fresh lobster, and the drooping lobster will go up with the dead lobster.
4. After cooking
The color of the cooked lobster is red and bright, the meat is fresh and tender, and the tail of the lobster is curved and elastic. After the meat of live shrimp is cooked, the muscle is still there. You can see a silk of meat. The tail of dead lobster is straight or curved without elasticity, the tail meat is not tight, loose, the shell color of shrimp is dark, lusterless, and the taste is not fresh. If you find that sometimes the shrimp meat you eat is powdered, when you peel the shell, the shrimp meat will be scattered when you pinch it. If so, Congratulations, you've got dead shrimp. Live Prawns will be scattered if cooked for a long time, but the meat will never be powdered.
5. Separation of head and tail
When the head and tail are separated, the living lobster has toughness, while the dead lobster is easy to cut off.
6. Look at shrimp meat
Due to the hydration of protein, the meat of dead shrimp will shrink, and the meat is uneven. How big a shrimp is, only a little meat is peeled out. That shriveled shrimps are dead shrimps. To see if the meat inside the shrimp shell is full, if there is empty shell or the peeled shrimp meat is obviously much smaller, it must be dead shrimp. Shrimp of the same size can't stand up because of the difference of peeling. But the living shrimp is very smooth.
Tips:
Many people know that a dead shrimp can see whether its tail is curled or not. In fact, in the case of high temperature, the tail of dead shrimp will also shrink. Therefore, it is not 100% accurate to distinguish dead shrimps by simply rolling their tails.
What's the harm of eating dead crawfish
It's better not to eat dead lobster
Crayfish itself is not very clean and sanitary. There are dirt, parasites and fungi on the body surface and in the body. However, crayfish belongs to high protein food. In summer, the weather is hot. This high protein food is prone to corruption and deterioration. Once the lobster dies, the bacteria break down immediately, and people eat it, which is prone to poisoning and diarrhea. Moreover, lobster contains a lot of histidine. When lobster dies, these histidine will quickly become a toxic substance, which is easy to cause food poisoning. Therefore, it's better not to eat dead crawfish, even if it's just dead.
What's the harm of eating dead crawfish
1. Food poisoning
Lobster belongs to high protein food. In summer, the weather is hot, and the food is easy to corrupt. The high protein food can start to rot after being placed under normal temperature for two hours. There are more parasites and fungi in crawfish, which is more quickly corrupt. The dead crawfish has denaturation of protein, with peculiar smell and toxicity. Eating can cause food poisoning. Diarrhea, abdominal pain, etc.
2. Heavy metal poisoning
There are some heavy metals in the living environment and food of crawfish. Because crawfish has the function of enrichment, its head contains more heavy metals, which can inhibit the diffusion of heavy metals when it is alive. After its death, the heavy metals will slowly spread to the meat quality of crawfish. Eating this crawfish will increase the risk of heavy metal poisoning.