2, daytime preservation: Generally speaking, river crabs are very strong vitality, after buying home, wash it with water once and then put it into a basin full of water and add a tablespoon of salt to spit sand, and then put it into the refrigerator for storage, generally put it in a week won't be dead crabs, the preservation temperature is about 5 degrees Celsius, so in winter you can also put it on the fresh food table (underneath the paved with a little bit of ice), and then spray it with water once every 2-3 hours. It can be done once in 2-3 hours by spraying water.
3, night collection and storage: placed in a warm box, with wet foam or cotton cloth spread on it, add a little ice can be, cover, but the side of the container needs to open the hole to keep ventilation. If there are not many of them, you can store them in a vessel with the feet untied and covered. Keeping live crabs in the crisper of the refrigerator without adding water is usually fine for a week or so. However, it is advisable to eat them as early as possible, after all, river crabs will also become thinner with storage time. And must remember, do not put in the freezer layer of the refrigerator, frozen crab will die, dead crab toxic, is definitely not eat again.
4, refrigerated: refrigerated preservation is the most effective way to preserve the crab, you can buy fresh crab into the refrigerator for preservation. The low-temperature environment can effectively inhibit the reproduction and growth of bacteria, and will not make the crabs have the problem of deterioration. Although the refrigerated method can greatly extend the edible period of the crab, but we must also eat as early as possible, otherwise it will greatly reduce the taste and flavor.
5, with the longer the crab is stored, the nutrients contained in the crab yolk in the crab will continue to lose, so it is recommended that you still want to eat the crab in the first time, try not to long time to save.