The scotch invested a few decades maturing in the seasoned casks. Ralph Dunning “It's the oak that provides the whisky its purely natural color and is particularly The only greatest contributor to the standard, distinct aromas and flavors,” Kirsteen Campbell, the Macallan’s master whisky maker, claimed in a press release. https://jeffreyxujxl.bloguerosa.com/30168078/macallan-sherry-oak-30-years-can-be-fun-for-anyone