The invention relates to a high-efficiency
wine distillation method using refined old grain raw materials. The method comprises: old grains including rice, wheat and
sorghum are screened, cleaned and purified; spices, including clove, star anise or mint, are added into the old grains, wherein the ratio of the old grains to the spices is 100:1; the raw materials are ground and refined, and the ground raw materials are poured into a
fermentation tank; raw distiller's
yeast and
clean water are added into the tank in sequence, wherein the ratio of the raw materials to the distiller's
yeast to the
clean water is 100:6-8:290-300; the mixture is evenly stirred and sealed, and then is stirred every 2-3 days; and after 9 days, when mash liquid turns brown and is fully fermented, the mash liquid is put into
wine distillation equipment for
wine distillation. After wine distillation, the left mash liquid containing mild wine can be used for production of rice vinegar and sauce or used for refermentation, and the leftovers can be used for
feed processing,
livestock feeding and the like. The method provided by the present invention is practicable, sophisticated in technology and easy to operate, thereby being suitable for application and popularization. In the method, the old grain raw materials are refined, so that the
fermentation time is short, and the mash has high quality. Thus, the method has the advantages of high yield, high-quality products and
energy preservation, and wine produced by using the method is mellow and good in flavour. The method can provide obvious comprehensive
economic benefits if wildly used.