ICUMSA 45 White Refined Sugar Specifications ICUMSA-45 Sugar is a most Highly Refined form of Sugar. ICUMSA-45 Sugar has a Sparkling White Color, and is the type most often sold direct to Consumers. It is suitable for Human Consumption and use in a wide range of Food applications. It is perpetually in High demand as it is the safest form of Sugar, due to the fact that the refining process by which it is created removes the Bacteria and Contaminants often present in raw sugars.