Guinness Draught is a 4.2% ABV dry stout that is one of the most successful beer brands worldwide. The thick creamy head is the result of the beer being mixed with nitrogen when being poured.
Ingredients: Pale ale malt, about 25 to 30% flaked barley, and about 10% roasted barley, with no other grains or sugars; several hop varieties, mainly Goldings (pellets and isomerized extract); a flocculent head-forming ale yeast.
Guinness is brewed at St. James's Gate Brewery, a brewery founded in 1759 in Dublin, Ireland, by Arthur Guinness. It became the largest brewery in Ireland in 1838, and the largest in the world by 1886, with an annual output of 1.2 million barrels. Although no longer the largest brewery in the world, it is still the largest brewer of stout in the world.