Milk Powder

What do baked goods, food aid supplies, and baby formula have in common? They all often rely on milk powder. A strange yet common ingredient, milk powder is, at its core, regular milk dehydrated by the partial removal of water. Because the ingredient is nonperishable, the cost of transportation and storage for milk powder is significantly lower than its liquid counterpart, making it just as valuable to those living in developing countries and temporary shelters as it is to hikers setting out on a long trip. Although dehydrated milk sounds like basic enough of a concept to grasp, I still wonder what goes into making fresh milk shelf-stable.