According to scientific principles, distiller's yeast actually evolved from moldy grains.

Based on the raw materials for making koji, wheat and rice are the main ingredients. Therefore, they are called Maiqu and Rice Qu respectively. There are many types of koji made from rice: such as small koji made from rice flour, red koji or black koji made from steamed rice, and rice koji.

Extended information

Classification of Qu Liquor

1. Daqu Liquor:

Using Daqu as the saccharification fermentation agent, the raw materials of Daqu are mainly Wheat, barley, plus a certain amount of peas. Generally, it is solid-state fermentation, and the wine produced by Daqu wine is of better quality. Most famous wines are made from Daqu wine.

2. Xiaoqu Liquor:

Xiaoqu Liquor is made from rice and mostly uses semi-solid fermentation. Most of the liquors in the south are Xiaoqu Liquor.

3. Glutinous rice wine:

Using pure cultured Aspergillus and pure cultured distiller’s yeast as saccharification and fermentation agents, the fermentation time is short. Due to the low production cost, it is used for most wines. This type of wine has the largest production volume. Target the public for consumption.

4. Mixed Qu liquor:

It is mainly a liquor made by mixing Daqu and Xiaoqu.

Reference: Baidu Encyclopedia_Qujiu?