This double cask distillery exclusive is called exceptional for a reason. Finished in a single Sherry butt for four years before being bottled at cask strength, Aberfeldy 20 Year Old Exceptional Cask is a luscious whisky with intense berry notes, sweet heather honey, and soft toffee, with a velvet smooth finish. Only 618 bottles of this exceptional whisky have been produced, so early purchase is strongly recommended. Each bottle of Aberfeldy 20 Year Old Exceptional Cask is individually numbered.