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
Yukon Brewing Company Ale category. In 2009 regulatory changes in the Yukon Territory where the brewery is based allowed for distilling. Yukon Brewing distilled and barreled what will become a single malt whiskey. The whiskey and other spirit products are to be sold under Yukon Brewings sister company Yukon Spirits. Yukon Gold is the best selling draft beer in the Yukon. Yukon Brewing Company Yukon Brewing is a trademark owned by the Chilkoot Brewing Co. Ltd brewery in Whitehorse, Yukon, Canada. When entering the American market, Chilkoot Brewing Company Ltd. faced trademark issues and decided to call itself the Cheechako Brewing Company. In