What Type Of Fermentation Is Used To Make Root Beer?
Root beer is typically made using lactic acid fermentation, in which lactobacillus bacteria are used to ferment a mixture of extracts from various spices, roots, and bark. The lactobacillus consume the sugar in the mixture, producing lactic acid and carbon dioxide as byproducts. The carbon dioxide provides the carbonation in the final product. Some commercial root beer brands may also use yeast fermentation or a combination of yeast and lactic acid fermentation.