For liquor of the same alcoholicity, both the decrement of total esters and the increment of total acids in liquor of high grade were higher than that in liquor of inferior grade.

• 酒精度越低，总酯减少量越高，减少速度越快。等级酒在贮存过程中最好为原度贮存，避免降度酒贮存后香味成分的大量损失。