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
Alcohol Is Free Alcohol Is Free "Alcohol Is Free" is a song performed by Koza Mostra and Agathonas Iakovidis. It was Greece's entry in the Eurovision Song Contest in 2013, where it eventually came 6th at the finals. It was composed as a mix of ska, punk and rebetiko music styles. The song's chorus is sung in English while the rest of it is in Greek. It was performed at Eurovision with the performers wearing kilts. The song also included a number of allusions to the Greek government-debt crisis and a feeling of suffering as a result of it. At the Eurovision Song