What is solid state brewing?

Solid state brewing refers to the use of raw material solid state brewing technology, grain is not steamed and cooked, and all raw materials are fermented.

The raw materials are divided into main materials and auxiliary materials, the main material is grain, and the auxiliary materials are rice bran, chaff, bran, sorghum shell and broken corn cob. The main materials and auxiliary materials are mixed with water, and then mixed with distiller's yeast, or compacted, or loose, or sealed, or open-air, so as to adjust the temperature, humidity and air, and then adjust the reproduction of microorganisms, the activity of enzymes secreted by microorganisms and a series of biochemical reactions. This process is fermentation. Through fermentation, the starch in the grain is decomposed into sugar and then into alcohol, the fat in the grain is decomposed into fatty acids and then into fatty acid esters and organic acids, and the protein in the grain is decomposed into amino acids and then into alcohols, aldehydes, ketones and nitrogen-containing compounds. These ingredients make up wine. Excluding water, alcohol accounts for 99%, and others only account for 1%. But without this 1%, it's just alcohol, not wine. The wine brewed in this way is the traditional pure grain solid fermentation wine.