The American Double Stout gets some of it inspiration from the Russian Imperial Stout. Many of these are barrel aged, mostly in bourbon or whiskey barrels, while some are infused with coffee or chocolate. Alcohol ranges vary but tend to be on the higher side and bigger than traditional Russian Imperial Stouts. Most tend to have cleaner alcohol flavours, higher hop levels, and more residual sweetness. Very full-bodied with rich, roasted flavours far surpassing normal stouts.