North British 40 Years Old Cask Strength Single Grain is an incredibly rare single grain whisky from the North British distillery, bottled in 2000 for the distillery’s employees. The whisky matured for four decades in the finest oak casks, before being bottled at a cask strength of 57.4%. Each bottle comes with an individually numbered certificate of authenticity. North British is a grain distillery in the heart of Edinburgh. It was founded in 1885 by a group of independent distillers, in order to break the monopoly of Distillers Company Limited. The distillery is now owned by Edrington and Diageo which, ironically, evolved from a merger involving DCL. The majority of the distillery’s production is used in blends, so single grain bottlings are very rare and there have only been a handful of official bottlings. Only 1000 bottles of North British 40 Years Old Cask Strength Single Grain were released.