Kaoliang X.O., on the other hand, must be aged for at least five years. This aging produces esters which mellow the flavor, making it rounder and smoother. Kaoliang X.O.
陳年高粱酒則又稱「陳高」，必須存放地窖熟陳達五年之久，辛辣味經過脂化，轉為香醇，是高粱酒中的極品，一瓶要一千六百元。