Auchroisk (also known as Singleton of Auchroisk) is a Speyside distillery founded in 1972 by the Justerini & Brooks group to meet the growing demand for blended whisky. Now owned by the Diageo group, it was a pioneer of double maturation, but never credited as such.

An Auchroisk 28 year old distilled in 1974 and bottled at cask strength in 2003 for the Rare Malts series. Created in the mid-1990s by United Distillers (Diageo), the Rare Malts series features bottlings from many of the group’’s distilleries, including some of the lesser known whose production was generally used for blends, as well as closed distilleries such as Port Ellen and Brora. Bottled at cask strength, the whiskies in the range are also known for their sometimes astounding alcohol content, often exceeding 60% ABV. The Rare Malts range was discontinued in 2005.