1. Most of the flower nails sold in the market are soaked in water. Then, after you buy home, put them in a basket to drain, and then wash them with clear water several times to wash away some visible sand and dirt.

2. After cleaning several times, put it on a plate, add some salt and edible alkali, and mix well with the flower nails. Leave it for 15 minutes before treatment.

3. Then clean the freshly pickled flower nail with clear water. Soak in clean water for another half an hour, put some edible salt in the clean water, and let the flower nail spit out the sand inside.

4. After soaking for half an hour, see if the shell of the flower shell turns white. If it is, it means that the flower nail is almost clean. Wash it with clear water several times.

5. If some flower crustaceans are not opened, they should be cleaned manually. The cleaning process takes time, so just be patient.