You can't eat rice wine with black hairs. The black hairs grow because the rice grains have black spots when brewing. Before brewing, if you find that the rice grains stick to the air very small black particles, if you are sure that it is not yet hairy, you should pick up the rice grains as soon as possible and throw them away, or else the rice grains with black dots when brewing are very easy to grow black hairs.

Rice wine, also known as wine, sweet wine. In the old days it was called "sweet". Brewed with glutinous rice, is a traditional Han specialty wine. The main raw material is rice, so it is also called rice wine. Brewed wine in the north is generally called "rice wine" or "sweet wine". It is a kind of sweet rice wine made by fermenting steamed river rice (glutinous rice) with wine yeast (a special kind of microbial yeast). The brewing process is simple and the flavor is sweet and mellow. The alcohol content is very low, so it is very popular among people.