Rice wine, also known as wine brew, sweet wine. In the old days, it was called "sweet wine". Brewed from glutinous rice, it is a traditional specialty of the Han Chinese and most ethnic minorities in China.1 The main ingredient is river rice, so it is also called river rice wine. In the north, it is generally called "rice wine" or "sweet wine". It is a kind of sweet rice wine made by fermenting steamed rice (glutinous rice) with wine yeast (a kind of special microbial yeast). The brewing process is simple and the flavor is sweet and mellow. It has a very low alcohol content and is therefore very popular among people.2 China has a long history of using high-quality brown glutinous rice to make wine for more than 1,000 years. Rice wine has become a daily drink in farming families. Modern rice wine is mostly produced in factories3.