Sand-entraining could make microbes in maternal fermented grains achieve pit entry fermentation by means of inoculation, which was simple and feasible and had satisfactory effects in the improvement of top-grade product rate.

• 通过夹沙发酵使母糟中的微生物以接种方式入池发酵，达到提高优级品率的目的，既简单可行，效果又明显。