Cyril P. Callister created what food spread from leftover brewers' yeast extract in 1922?
Cyril P. Callister Cyril Percy Callister (16 February 1893 – 5 October 1949) was an Australian chemist and food technologist who developed the Vegemite yeast spread.
Thomas Mayne (inventor) Thomas Mayne (25 December 1901 – 25 January 1995) was an Australian industrial chemist. He was also a food researcher and the inventor of Milo, the powdered chocolate-malt drink. In 1934, Mayne developed Milo and launched it at the Sydney Royal Easter Show. Milo began production at the plant located in Smithtown, near Kempsey on the north coast of New South Wales. The name was derived from the famous ancient athlete Milo of Croton, after his legendary strength.