Alcoholic drink jugs suggest that intentionally fermented drinks existed at least as early as the Neolithic period (cir. 10,000 BC). Many animals also consume alcohol when given the opportunity and are affected in much the same way as humans, although humans are the only species known to produce alcoholic drinks intentionally. Beer is a beverage fermented from grain mash. It is typically made from barley or a blend of several grains and flavored with hops. Most beer is naturally carbonated as part of the fermentation process. If the fermented mash is distilled, then the drink becomes a spirit. In the Andean region,
Korean alcoholic drinks are six distinct flavors: sweet, sour, pungent, roasted, bitter and spicy. When the flavors are balanced, the alcohol is considered good quality. Most traditional Korean alcoholic drinks are rice wines, fermented with the aid of yeast and "nuruk" (a wheat-based source of the enzyme amylase). Main varieties include clear rice wines ("cheongju"), milky rice wine ("takju"), distilled liquor ("soju"), fruit wine ("gwasil-ju"), flower wines, and medicinal wines. "Makgeolli" (also known as "takju" and "nongju"), is a milky, sweet alcoholic drink made from rice. It is one of Korea's most-popular alcoholic drinks. The oldest traditional Korean rice wine, its alcohol content