Feeling thirsty? Consumers across the world drink nearly 190 billion liters of beer each year—the equivalent of 76,000 Olympic-sized swimming pools. With a global market worth over $600 billion last year, the beer industry is expected to grow as consumers continue to guzzle one of the oldest drinks on earth. The Sumerians of ancient Mesopotamia are the first society known to produce beer, although historians suggest beer likely existed much earlier. Beer is an alcoholic drink made from fermented cereals such as barley and flavored with hops. Because the fermentation process killed bacteria, beer was often safer to drink than water and was prevalent throughout several ancient civilizations. The earliest known beer recipe, the “Hymn to Nink...