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
Christian Schmidt Brewing Company protested, and stalled numerous times. In May 2009 the Piazza at Schmidt's, a 150 million dollar retail, restaurant, and apartment complex opened on the former brewery grounds. Christian Schmidt Brewing Company The Christian Schmidt Brewing Company was an American brewing company located in the Northern Liberties section of Philadelphia, Pennsylvania. The company was founded in 1860 when 27 year old brewmaster Christian Schmidt acquired Courtenay's Brewery in Philadelphia. Schmidt's continued to grow and expand throughout its 127 years in operation. Like all American breweries, C. Schmidt & Sons was forced to cease production of alcohol with the passing of the