According to the query of Kyushu Drunk Catering Network, it is known that there are some microorganisms and bacteria in the flower nail, as well as some common parasites. It takes about five to ten minutes to cook, so that the parasites in the flower shell can be completely killed and eaten healthily.

Attention should be paid to the choice of flower nails. You should choose a flower nail that will close when you touch it. If you touch it many times and it won't close, it means it's either dead or empty.