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 inhalation others. Alcohol inhalation Alcohol inhalation is a method of administering alcohol (also known formally as ethanol) or alcoholic drinks directly into the respiratory system, with aid of a vaporizing or nebulizing device. It is chiefly applied for recreational use, when it is also referred to as alcohol smoking, but it has medical applications for testing on laboratory rats and treatment of pulmonary edema in humans. To inhale alcohol, it must be first converted from liquid into gaseous state (vapor) or aerosol (mist). For recreational use, a variety of methods have been invented. Alcohol can be vaporized by pouring it over