According to the introduction of raw materials of Jiucang Jiujiu, an aged puree wine in renhuai city, Guizhou Province, this brand wine is made of local red cherry glutinous sorghum in Maotai Town: nine times of cooking, eight times of fermentation, seven times of wine extraction, and brewed in spring, summer, autumn and winter. This wine has a strong aroma, an empty cup, a soft and mellow entrance, and belongs to pure brewing.

Pure grain wine is a kind of wine brewed entirely from grain. The main style characteristics of grain wine depend on the following aspects: first, koji-making technology, second, brewing technology, third, old pit mud technology and fourth, blending technology.