That's the one, lovely stuff.http://uk.askmen.com/entertainment/special_feature_300/336_guinness-5-things-you-didnt-know.html
However, the Guinness variant popular in Ireland, the UK and the U.S. is not the popular one in Africa, where they prefer the Guinness Extra Foreign Stout, a variant with a much higher alcohol content (7.5%) than the draft (around 4.0%).