The breakdown of well known good quality rice was higher than 100 RVU(Viscosity unit for RVA), while the setback was bellow 25 RVU, and tended to be negative in most cases.

• 公认的食味较好的优质品种的RVA谱往往崩解值大多在100RVU（RVA粘度单位）以上，而消减值小于25RVU，且多数为负值；