Scientific research shows that with the increase of tannin content in sorghum, the rate of high-quality liquor also increased gradually, which reveals that tannin has an important effect on liquor making. Although High tannin affects liquor yield, it significantly improves the quality of sorghum liquor.

In order to select high-quality grain and brew high-quality liquor, Fenjiu relies on the Sorghum Research Institute to establish its own raw grain base to ensure the supply of high-quality raw grain of Fenjiu.

Fenjiu started the construction of the raw grain base layout while researching and developing sorghum seeds. Its "first workshop" construction began since then. Sorghum variety breeding is not simple. In addition to a mass of research and breeding work, a considerable waiting time is needed.

Fenjiu Group, as an important backbone enterprise in Shanxi Province, is one of the largest famous and excellent liquor production bases in China. It has established high-quality raw grain bases with the planting area of about 1.1 million acres in Shanxi, Jilin, Gansu and Hebei provinces and Inner Mongolia Autonomous Region, and sorghum planting in Shanxi has formed a scale of about 500,000 acres.

To achieve more efficient production, Fenjiu group and the Sorghum Research Institute formulates the special sorghum variety for brewing and its planting procedures. The raw grain purchasing department of Fenjiu Group has built a raw grain sorghum base in Qinxian county and issued yearly production tasks and targets according to the requirements of Fenjiu raw grain. The base signs green sorghum planting order contracts with townships, impoverished villages, poor household's union. The cooperative has been established to form the management system of "Fenjiu raw grain Company + Jinfen Sorghum Company + cooperative + planting base + planting farmers", and to implement the "six unified" standardized planting management model, including unified varieties, input, cultivation technology, guidance service, field management, and acquisition.

A sorghum seed that connects science and quality, workshop and field, winery and farmers, adds a refreshing fragrance to the world day by day.