The term “sherry matured” denotes a whisky that has been matured exclusively in a sherry cask, while the term “sherry cask finished” denotes a whisky that was “finished” for a period of time, typically anywhere from 6 months to 24 months, in a sherry cask.
Like whiskey and other spirits, sherry is aged in wooden barrels or casks. Scottish distilleries began the tradition hundreds of years ago of recycling those casks to finish their Scotch. The residue of sherry in the wood imparted sweet, fruity notes and helped soften the flavor.
The Famous Grouse is extra matured in Sherry casks Oak first. Famous Grouse Sherry Cask finish has aromas of cocoa, sherry, cherry and light oak. Sweet on the tongue with a combination of oaky vanilla, dark chocolate, maple syrup, toasted almonds and hazelnuts.