Pasteur reported that Yeast under anaerobic conditions produces alcohol. Lactic acid contamination suspends fermentation and promotes growth. (see my article Pasteur's dictum in . 2014 Mar 17;4:51.Front Oncol doi: 10.3389/fonc.2014.00051). See also Euler's opinion i prtitioning of anaerobic and aerobic metabolism within a cell (figure attached) and Stocklasa's work on alcohol production in human and animal tissues. We are yet to udentify the immediate precursor of both lactic acid and alcohol, a confusion, which exsta in fornsic medicine as well as in alcohol industry and in cancers and diabetes.