1. After you buy it, you should soak it in water for two hours, that is, soak it for two hours. Change the water several times in the middle until the water is clear and there is no sediment.

2, the flower armor is soaked in cold water first, then soaked in salt and vinegar, and you can put more salt appropriately. Stir with chopsticks and soak for another five minutes. Then rinse directly with boiling water, add salt, and finally rinse with boiling water.

3. Add salt to cold water, add a few drops of sesame oil, soak the flower nail in water for one hour, stir it with chopsticks, and then clean it with water. Because the fragrance of salt and sesame oil can make the flower nail open, stir it after opening, and the sand inside can be spit out when the flower nail is opened and closed.

4. Wash the flower nail, screen it out with a sieve, and put it in the refrigerator for one hour. The flower nail will open its mouth and spit out all the sediment.