Ardbeg Single Sherry Cask 86 Fortnum & Mason is a single-cask Islay single malt whisky produced at the Ardbeg Distillery on the isle of Islay. This single-cask release of Ardbeg`s famously peaty malt was distilled in 1990 and matured for 16 year in a single ex-Sherry butt. It was bottled on 11 April 2007 to commemorate the 300th anniversary of the Fortnum & Mason store in London. Just 300 bottles were filled.