1, you can put the snail in a basin full of clear water, and then put some iron in the basin. When the snail smells the iron, it will spit out all the sediment. The next day, you will find that the iron is covered with snails and there is spit out sediment below.

2. Wash the bought snail several times and put it in clear water, then add salt to the clear water. The amount of salt is enough if you feel that the water is salty. The snail in the salt water will absorb water and spit mud, change the water every 4 hours or so, and add salt again every time. If the water is still dirty, continue to soak until the water does not change its dirty position.

3. Add a proper amount of salad oil or sesame oil to a basin full of clear water, stir well after adding it, and then put the snail in. When it smells the fragrance, it will spit mud. Put it in the shade and let the snail spit mud. Change the water once or twice a day. Every time you change the water, you need to clean all the impurities. After cleaning, add water again and add salad oil or sesame oil. Basically, it can be further processed after soaking for two days.

Remember to cut off the tail of the snail before frying it.

Extended data:

Stocking of snail

1, application of organic fertilizer

3 ~ 4 days before stocking snails, a proper amount of matured organic fertilizer, such as chicken, duck, cow and pig manure, is put into the pond, and generally 30~50kg of organic fertilizer is applied every 667m2, mainly to cultivate organic microorganisms in the pond, which is beneficial to the growth of snails and the supply of food bait. On the fifth day, loach seedlings with a small size of 500~ 1000 fish /667m2 can be released as a test fish and matched with cultured fish. In the future, depending on the growth of snails and the water quality of ponds, organic fertilizer will continue to be applied. ?

2. Purchase of snail species

Snail species can be purchased from large-scale farmers' wholesale market or professional seedling supply field. Fresh snails with light brown shell color, complete shell and no defects or sand holes should be selected. According to the dosage of 80 8~ 10/00000 /667m2, the seed snails were purchased. ?

3. Stocking of seed snails

Seed snails should be put into the pond as soon as possible after they are bought, but attention should also be paid to the temperature difference. Especially when the pond water is cold, the pond water should be mixed with the bottled water of snails, and they can be put into pond culture when the temperature difference is close. Oncomelania snails can be released when the temperature is above 20℃ and the temperature of the pond water is above 15℃ around Tomb-Sweeping Day every year.

Baidu Encyclopedia-Snail