Article, dried and re-constituted milk for the supply of large cities Describes methods of transporting milk, as condensed, sterilised, evaporated or dried -- notes that evaporation is largely the method adopted for supplies of large urban centres -- that complete drying, which removes all fats as well as water, produces a powder that keeps indefinitely and can be transported in paper boxes. From the Ministry of Food files, communicated to Freda Saxton. September 1918