Brewing much studied, the preservative nature of the soft resins is not yet fully understood, though it has been observed that unless stored at a cool temperature, the preservative nature will decrease. Brewing is the sole major commercial use of hops. Yeast is the microorganism that is responsible for fermentation in beer. Yeast metabolises the sugars extracted from grains, which produces alcohol and carbon dioxide, and thereby turns wort into beer. In addition to fermenting the beer, yeast influences the character and flavour. The dominant types of yeast used to make beer are "Saccharomyces cerevisiae", known as ale yeast, and "Saccharomyces
Anchor Brewing Company Anchor Brewing Company Anchor Brewing Company is an American alcoholic beverage producer, operating a brewery and distillery on Potrero Hill in San Francisco, California. The brewery was founded in 1896 and was purchased by Frederick Louis Maytag III in 1965, saving it from closure. It moved to its current location in 1979. It is one of the last remaining breweries to produce California common beer, also known as "Steam Beer", a trademark owned by the company. In 2010 the company was purchased by The Griffin Group, an investment and consulting company focused on beverage alcohol brands. The brewery is now