The Sweet Stout, or Milk Stout, is a very dark brown to black colored, sweet, full-bodied, slightly roasty ale that can suggest coffee-and-cream, or sweetened espresso. The sweetness in most Sweet Stouts comes from a lower bitterness level than most other stouts and a high percentage of unfermentable dextrins.
Stouts produced in the U.S. combine the typical dark body and creamy notes with the hoppy bitter flavors characterized by American beers. American stouts are strong, highly roasted, bitter and hoppy, with high malt flavors that give them the taste of coffee or dark chocolate, according to the BJCP.
Like porters, stouts are dark, roasted ales. Stouts taste less sweet than porters and often feature a bitter coffee taste, which comes from unmalted roasted barley that is added to the wort. They are characterized by a thick, creamy head. Ireland's Guinness may be one of the world's best-known stouts.