Bacteria in Brewing

Bacteria in brewing are microorganisms that can influence the fermentation process. While yeast is primarily responsible for turning sugars into alcohol and carbonation, bacteria can either enhance or spoil beer depending on the type. Some bacteria, like lactic acid bacteria, are intentionally used to produce sour beers by creating tangy flavors. However, unwanted bacteria can cause off-flavors, cloudiness, or contamination, risking the beer’s quality. Breweries carefully control their environment to promote beneficial bacteria and inhibit harmful ones, ensuring consistent, high-quality beer production.