Guinness je pivo "gornjeg" vrenja (engl. stout) s okusom prženog ječma, a poznato je po svojoj tamnoj boji i kremastoj pjeni. Guinness je najprodavaniji stout na svijetu, a dostupan je u više od sto pedeset zemalja diljem globusa gdje se svakodnevno konzumira više od deset milijuna čaša toga piva.

COMMERCIAL DESCRIPTION
Available in cans, kegs and bottles with nitrogen and carbon dioxide. Pasteurised. Usually called Draught; sometimes called Cold or Extra Cold - same beer, but served colder.
Launched in 1961.
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.

Detaljnije na ratebeer.com