Evaporated milk is produced by removing 60% of the water from fresh milk through a process called vacuum evaporation. This concentration of nutrients and calories makes evaporated milk more nutritious but also more calorie-dense than fresh milk. The standard defines evaporated milk as containing at least 7.9% milk fat and 25.5% milk solids. Vitamins A, D, and C are added during processing which involves homogenizing, rapid chilling, fortification, packaging, and sterilization. Evaporated milk has a thicker, creamier texture and darker color than fresh milk due to the high heat processing.