what type of beer is guinness

Guinness is a traditional Irish stout beer made from barley, hops, water, and a specific strain of ale yeast. It is a type of ale known as stout, and it is made from a grist that includes a large amount of roasted barley, which gives it its intense burnt flavor and very dark color. Guinness is available in a few varieties today, including Guinness Draught, Guinness Extra Stout, Guinness Foreign Extra Stout, Guinness Original, Guinness Dublin Porter, Guinness West Indies Porter, and Guinness Black Lager. The yeast used in Guinness has been used for over 125 years and is now often simply called "Guinness yeast".