Distinctive. Matured. Toasted. Bitter. GUINNESS® Strong tasting with a distinctive roasted bitterness, GUINNESS® Extra Stout is our authentic carbonated classic. It'll transport you back to an 18th Century world of stouts when the ancestor of this beer was known as GUINNESS® East and West India porter. In 1821, the definitive early GUINNESS® became known as Extra Superior Porter.