The invention discloses fen-
flavor liquor and a preparation method thereof, and relates to the technical field of liquor
brewing. The preparation method comprises the following steps: taking out large-stubble fermented grains fermented in a ground cylinder, adding the reinforced
yeast and the rice husks, turning over sand, and uniformly stirring to obtain sand-turned fermented grains; pre-arranging automatic ventilation equipment in a storage
yard, stacking the sand-turned fermented grains in the storage
yard, carrying out stacking
fermentation, and obtaining stacked fermented grains when the temperature of the middle part of the sand-turned fermented grains reaches 40-50 DEG C and the state of no
water seepage is taken as a stacking end point; turning and cooling the piled fermented grains, putting the piled fermented grains into a pit, sealing, and performing esterification
fermentation to obtain fermented fermented grains; and distilling the fermented grains to obtain a finished product. The acidity of the large-stubble fermented grains is not less than 1.0, and the
alcohol content is not less than 8%; the acidity of the fermented grains is not less than 2.0, and the
alcohol content is not less than 8%. According to the method, the problem of
mildew and rot caused by long-time
fermentation of a traditional ground cylinder is avoided in a mode of sand overturning, accumulation and sealed fermentation, ester
flavor substances are fully generated, and the overall quality of the fen-
flavor liquor is improved.