2, mash generally refers to rice wine. Rice wine, also known as wine, sweet wine. In the old days, it was called "sweet wine". Brewed with glutinous rice, is a traditional Han specialty wine. The main raw material is glutinous rice, so it is also called Jiangmai wine. Brewed wine in the north is generally called "rice wine" or "sweet wine". It is a kind of sweet rice wine fermented with steamed glutinous rice mixed with wine yeast (a kind of special microbial yeast).