Powdered milk is a manufactured dairy product which is developed by drying out dairy milk via evaporation. One of the main intentions for drying liquid milk is for preservation, as milk powder has a much longer shelf life than standard liquid milk, and it does not have to be chilled.
The most general uses for powdered milk is for the manufacture of infant/baby formula. It is also found in confectionery in particular chocolate and caramel candy, and baked food where using liquefied milk will make the product too thin.
There is a huge export industry for Milk with the production of powdered milk in Europe approximated to be at 800 thousand tonnes.