The
brewing technology comprises the following steps that fermented fermented grains are discharged out of a cellar in a layered mode, and the fermented grains sequentially comprise return fermented grains, upper-layer fermented grains, middle-layer fermented grains and bottom-layer fermented grains from top to bottom; the upper-layer fermented grains and the bottom-layer fermented grains are respectively mixed with the rice husks, and the middle-layer fermented grains are mixed with the cereals and the rice husks to form haw fermented grains; the method comprises the following steps: distilling and receiving
wine, discarding the fermented grains after distilling and receiving the
wine, distilling and receiving the
wine on the upper-layer fermented grains,
brewing acid, adding water, spreading for cooling, adding
yeast, and taking the fermented grains as the fermented grains entering the cellar again, distilling and receiving the wine on the bottom-layer fermented grains, spreading for cooling, storing, distilling and receiving the wine on the middle-layer fermented grains, uniformly spreading the stored bottom-layer fermented grains on the hawthorn fermented grains,
brewing acid, adding water, spreading for cooling, and adding
yeast, so as to obtain the upper-layer fermented grains, the middle-layer fermented grains and the bottom-layer fermented grains entering the cellar again. According to the method, residual
starch and acid ester
flavor substances in the bottom-layer fermented grains are fully utilized, the operation is simple, the
energy consumption is reduced, the liquor yield can be improved, the cost is reduced, the quality of the produced raw liquor is higher, and the method has practical benefits on liquor production.