Well-matured Mortlach? Yes please! This expression is a 34 year old single malt from the Mortlach Distillery, well-known for making some intense, meaty whiskies. It was distilled back in 1986 and set aside to age in a single refill bourbon cask until 2020, when it was independently bottled by Adelphi at cask strength, with an outturn of 224 bottles.