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
Hibernia Brewing undeveloped in the years afterward. During the 1990s, the Hibernia Beer Garden closed again, this time permanently, becoming a park for city residents. The Hibernia beer brands, including Eau Claire All Malt, were not picked up by any other brewer. Hibernia Brewing Hibernia Brewing Ltd. was an American brewery company, the successor firm to the Walter Brewing Company, located in Eau Claire, Wisconsin. Under the leadership of Michael Healy, president and chief stockholder of Hibernia, the brewery introduced several specialty brews considered innovative for their time and became one of the first producers in the American Midwest of what now