Guinness Brewery is a microbrewery founded in 1759 in Dublin, Ireland. Arthur Guinness was the mastermind behind the creation of what is deemed to be the world’s largest brewer of stout. The brewery was later bought by Diageo in 1997 when Guinness and Grand Metropolitan merged their businesses. Guinness Brewery is most famous for its Guinness Draught, a dry stout that has remarkable burnt flavor from roasted unmalted barley. Guinness beers generally have distinctive dark red to opaque black colors due to their ingredients. More than anything, Guinness Brewery centers their beer ingredients on roasted, malted barley, yeast, hops and excellent water.