Whisky Words: Cask Strength

“Cask strength” refers to whisky that has been bottled without any dilution at the natural alcohol level it had in the cask. Unlike most commercially available whiskies that are watered down to around 40–46% ABV for consistency and drinkability, cask strength whiskies are often between 50–65% ABV, depending on age, climate, and cask conditions. However, if the cask strength whisky is 43% ABV when bottled undiluted, it will still be a Cask Strength whisky.

From Barrel to glass. AI-generated illustration.

This style of whisky is prized by enthusiasts for its raw intensity, complexity, and authenticity. It offers the drinker full control over dilution, allowing them to add water, which often unlocks new aromas and flavors. However, it also demands more experience and respect from the drinker due to its high potency.

Whiskies bottled at cask strength are considered a direct connection to the cask and the spirit of the distillery.

✨ Did you know?

While it's common to find single-cask expressions bottled at cask strength, they are distinct terms that can be used independently.

Bottom line: "Cask Strength" is an expression of whisky bottled at the alcohol level it had in the cask, undiluted.