2. Prepare a relatively high plastic bucket or basin with water to keep it alive, so as to ensure that the inner wall of the container is smooth and the crabs are not easy to escape. Put the crabs in it, and then add water to half the height of the crabs for moisturizing. Do not drown all the crabs. If the water is too deep, the crabs will die of suffocation due to lack of oxygen.
Don't cover the bucket or basin, check the crabs every day, eat the crabs with insufficient vitality in time, and preserve the crabs in this way. When the temperature is not high, the crabs can be preserved for more than 5 days.
2 Can crabs be eaten after they die? If crabs have just died 1 hour, they are generally edible, but it is not recommended to eat crabs that have been dead for a long time.
Crabs are cold in nature, and eating more is easy to cause diarrhea. As far as dead crabs are concerned, in addition to their cold nature, some harmful substances may be produced in the body after death. If they continue to eat, they may cause diarrhea, abdominal pain and other related symptoms, so dead crabs cannot be eaten.
Therefore, eating crabs must be fresh and fresh, so that it will not cause harm to health.
3 Can live crabs be frozen? Live crabs can be frozen directly, but it is necessary to pay attention to good methods and storage time to avoid affecting the taste and nutrition of crabs.
Pay attention to the method of freezing live crabs. It is best to tie the crab claws with cotton rope and put them in a foam box of appropriate size. Then pour a proper amount of water into the foam box to ensure the humidity. Do not drown them. Cover them and put them in the freezer.
Live crabs can generally survive for about 24 hours in the low temperature environment in the refrigerator, and crabs frozen for 24 hours will be in a dormant state. If it exceeds 24 hours, crabs will gradually die due to low temperature and lack of oxygen, so it is recommended to thaw crabs as soon as possible.
4. How to choose good quality crabs 1. See that the back of crab shells is dark green with light, and most of them are thick and strong; And the back of the shell is yellow, so the meat may be thin.
2. Look at the navel Where the navel is prominent, most of them are crabs full of fat and fat; However, if the navel is concave, the body is insufficient.
3. Look at the claws. All the hairy feet on the claws are mostly old and healthy crabs; However, if the pincers have no fluff, they will be soft and fat-free.
4. Look at the vitality and put the river crab on its back, with its abdomen facing the sky. Anyone who can quickly turn over and crawl will look old and healthy; If you can't turn over and crawl, you will have poor vitality and it is not recommended to buy it.
5. Look at the male and female lunar calendar around September, the female crabs have mature gonads and plump meat; After October of the lunar calendar, male crabs have mature gonads and plump meat.