Full Cream Milk Powder Full Cream Milk Powder is Non-instant. It is also made by concentrating the milk to remove most of its water. It process cooks out the moisture at a higher temperature than the process used for instant skim milk. This gives it a visible â??cookedâ?? flavor when itâ??s re-formed. Some brands of non-instant milk use the heated-chamber method of producing powder, but most spray the droplets of concentrated milk onto a heated roller. This produces a finer, denser powder thatâ??s slower to reconstitute. Most non-instant milk is also non-fat, although whole-milk versions are available.