Auchentoshan was built in 1800. After its foundation, it changed hands multiple times, and was rebuilt completely in 1969. It was sold to Morrison Bowmore distillers in 1984. In 1994, Suntory acquired 100% of Morrison Bowmore and in 2014, Beam Inc. and Suntory merged to create Beam Suntory Inc, who are now the owners of Auchentoshan and other Morrison Bowmore distilleries and brands.
Unusual for a Scottish distillery, Auchentoshan practises triple distillation. Generally the final stage of Scotch whisky production involves distilling the fermented mash in two copper stills. At Auchentoshan, a third still (known as the "Intermediate Still") helps to give a final spirit strength of 81% ABV. This triple distillation, in addition to an unpeated malt, gives Auchentoshan a more delicate and sweet flavour.