Fermentation is a biological process involving yeast that converts sugars into alcohol. The overall chemical reaction for fermentation is the conversion of a single molecule of glucose (sugar) into two molecules of ethyl alcohol, and two molecules of carbon dioxide. Chemically, the formula for this reaction is written as: C6H12O6 ===> 2(CH3CH2OH) + 2(CO2). Fermentation can also transform other sugars, usually by first converting them into glucose.
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