Huangjiu, a specialty of the Han Chinese people, is a brewed wine, which occupies an important place among the world's three major brewed wines (yellow wine, wine and beer). The brewing technology is unique and has become a typical representative and model of the oriental brewing world. Yellow wine, represented by Shaoxing yellow wine in China, is the oldest and most representative product of yellow wine. It is a grain wine made from rice. Unlike white wine, yellow wine is not distilled and has an alcohol content of less than 20%. The color of different kinds of yellow wine also shows different beige, yellowish brown or reddish brown. Shandong Jimo Old Wine is a typical representative of northern corn yellow wine; Fujian Longyan Sinking Jar Wine and Fujian Old Wine are typical representatives of red rice yellow wine.