Guinness is an Irish dry stout that originated in the brewery of Arthur Guinness in Dublin, Ireland. Guinness is brewed in almost 60 countries and continues to be one of the most successful beer brands in the world. Guinness stout is made with water, barley, roast malt extract, hops and yeast. When poured on draught, the beer produces a thick and creamy head from it being poured on a nitrogen tap. Guinness draught, is sold in kegs, widget cans and bottles. Guinness also produces other varietals including Guinness foreign extra stout, Guinness red, and most recent Guinness blonde.