ovaltine - wikipedia
Ovaltine was very popular in Britain, and was manufactured at Kings Langley in Hertfordshire using a process that included GEA Wiegand falling film evaporators to concentrate liquid malt extract which was then dried under vacuum in steam heated band dryers. The art deco style Ovaltine factory in Kings Langley is a well-known local landmark. Production ceased in 2002 and the factory has now