Tie the legs of the live river crabs, put them into a foam box, neatly arranged and placed, then fill the box with water, cover it and put it into the freezer of the refrigerator, this method of preservation can be kept fresh for 1-2 weeks; if you can finish them in 3-5 days, you can keep the live crabs for a while, choose a higher container, don't add too much water, just diffuse it over half of the river crabs. Half can be enough, after that you can feed some food, such as eggs, sesame seeds and so on.

First, how to save live river crabs do not die

1, into the refrigerator to save

General buy home live river crabs if temporarily eaten, you can buy live river crabs legs tied, and then put into a foam box, you need to be neatly arranged in a row, and then put a layer of wet towels on the top, and then finally injected into the foam box, the cover and put into a foam box, and then put a layer of wet towels on the top, and finally injected into a foam box. Cover the lid and put it in the freezer to save it, so you can keep it fresh for about 1-2 weeks, but you need to thaw the live river crabs in advance each time you eat them.

2, bucket farming

If you can guarantee to eat live river crabs in 3-5 days, you can raise the live crabs temporarily, you can fill the bucket with the right amount of water, the amount of water only need to diffuse through the live river crabs half of the height of the water can be injected into the water for the purpose of moisturizing, too much water will make the live river crabs due to the lack of oxygen and death, and then you need to feed some food, such as eggs, sesame, etc., and then you need to feed some food to it. Secondly, you also need to pay attention to the bucket not to cover, and check the freshness of the live river crabs every day.

3, notes

If you find that some live river crabs are already dying, you need to cook and eat in time, if it is already dead live river crabs, it is not recommended to eat, because the bacteria in the body of the dead crabs multiply very fast, and will affect human health after consumption.

Second, the method of selecting river crabs

1, look at the color

Fresh live river crabs shell for the green-black, glossy, umbilical cord is full, the abdomen is white clean, and the shell of the dying river crabs is yellow, the crab feet are soft, turn positive is also more difficult.

2, look at the eye

The hand can touch the eye of the river crab, generally fast into the eye socket can not be touched more fresh, and vice versa is worse.

3, look at the chelipeds

River crabs have 1 pair of pincers (chelipeds), 8 feet (claws), if there is a lack of feet of river crabs, there may be wounds due to the deterioration of the meat, but also due to physiological effects of the fat degree of deterioration.

4, look at the vitality

The river crab will be turned over, the general abdomen to the sky, can quickly use the chelipeds to turn the flip back, the vitality is relatively strong, and can not be turned over the river crab, it means that the vitality of the poor, the storage time is not very long.

5, look at the degree of fatness

Need to look at the degree of fatness of river crabs, first of all, open the navel of the river crab, generally as long as it is presented with an egg yellow river crab, which means that a lot of crab yolk, while presenting the white river crab, which means that the degree of fatness of river crabs is relatively poor; you can also look at the river crab under the sun to see whether the edge of the cover is transparent to the light, if it is not translucent, it means that the crab is more fat, and vice versa, it is relatively thin.