The Famous Grouse Cask Series is a range of single malt Scotch whiskies from Scotland’s oldest whisky distillery, The Famous Grouse. The range includes a variety of expressions, each of which has been aged in a different type of cask. The range includes whiskies aged in sherry, bourbon, port, and rum casks, as well as a variety of other cask types. The whiskies are bottled at 40% ABV and come in a 750 ml bottle.