For lactose production the whey is evaporated to 55–65% solid content, and the concentrate is then seeded and cooled slowly to induce sugar crystallization. The raw lactose (food quality) is recrystallized to yield a raffinade (pharmaceuticalgrade
lactose). Lactose is used in manufacturing of drugs (tablet filler), dietetic food products,baked products, dehydrated foods, cocoa products,beverages and ice creams.