Only the best Aberfeldy has to offer is released under their Exceptional Cask Series label. One such example is the Aberfeldy, 20 Y. First distilled in 1998, it was filled into bourbon barrels. However, for the last 5 years of maturation the whisky was transferred into first-fill sherry casks. The result is a limited-edition single malt of supreme quality that’ll satisfy any Scotch whisky enthousiast.