Icumsa 150 is low in unsweetened soluble solids. Lighter in color and can be stored for up to 2 years. Sugar in crystalline form, with color controlled within the specified range, produced directly in the mill and without refining. Icumsa 150 sugar is suitable for human consumption and for use as an ingredient in foods and beverages. The term ICUMSA is an acronym called the International Commission for Uniform Methods of Sugar Analysis.