What does it mean to be the only Triple Distilled Single Malt In Scotland? It's more time consuming. It's more expensive. And it's also absolutely unique, no other Single Malt Scotch Whisky goes beyond two distillations for every drop. Why do Auchentoshan persist? The extra distillation takes refinement of spirit to around 81% as opposed to 70%. This dramatically affects the character of finished Malt, arriving at a most subtle Whisky that matures beautifully in a selection of American oak casks which have previously been used for ageing Bourbon.