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
Founders Brewing Company during what has become known as KBS Week. The "regular" Breakfast Stout is a seasonal American Imperial Stout with wider availability. They are also releasing the Canadian Breakfast Stout (CBS) in December 1, 2017, the first time since 2011. Overlooking the brewing facilities, the Founders taproom allows customers a look into where beer production occurs and offers many beers on draft that are only available at the tap room. The offering of specialty beers and live music four times a week has helped make the taproom a staple in the Grand Rapids community and a destination for travelers. The deli