Pure grain liquor is a unique kind of liquor in the world. It is a beverage made from wheat, sorghum, corn, sweet potato, rice bran and other fruits by fermentation, koji and distillation. Its liquor is colorless and transparent, so it is called liquor. Liquor is rich in aroma, mellow and soft, and has various flavors. Because it mainly uses burning (steaming) process, it is also called shochu. Because of its high alcohol content, some places call it strong liquor or high-alcohol liquor. China famous wine has a long history and is unparalleled in the world.

Pure grain liquor is a kind of high-concentration alcoholic beverage. According to the different saccharification, fermentation strains and brewing technology, it can be divided into three categories: Daqu liquor, Xiaoqu liquor and bran koji liquor, among which bran koji liquor can be divided into solid fermented liquor and liquid fermented liquor. The origin of liquor is later than that of rice wine. But there are different opinions about when it originated. According to the cultural relics unearthed in the Jin Dynasty, the name of a set of copper-made burning (steaming) wine is verified, and its history is at least 800 years. The nutritional components of this data are taken from 50-degree Chongming old wine.