How is sugar graded?
Sugar is graded according to its color and according to the size of its granules. Internationally, ICUMSA is the yardstick with which quality of sugar is judged. Color of the sugar and the luster of sugar are the predominant factors in ICUMSA rating. As per Indian standards based on the color and luster of sugar the same is assigned numbers viz. 29, 30 and 31. The lower the number inferior or duller the color of sugar and vice versa. On the basis of granule size sugar is again classified as S, M or L meaning small, medium and large sugar.