Cask Strength Whisky

Bold and powerful, our Cask Strength Whisky delivers uncut flavour and natural strength.

Cask Strength Whisky
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  • New In
    12 Year Old Cask Strength: 2026 Edition 12 Year Old Cask Strength: 2026 Edition
    12 Year Old Cask Strength 2026 Edition
    Regular price £90.00
    ABV 55.8%
    12 Years Old
    Oloroso and Bourbon
    Sherried, Fruity, Unpeated
  • Bunnahabhain 21 Year Old Cask Strength 2025 Edition Bottle 21 Year Old Cask Strength: 2025 Edition
    21 Year Old Cask Strength 2025 Edition
    Regular price £275.00
    ABV 53.1%
    21 Years Old
    Oloroso and Pedro Ximénez
    Chocolate Cherries, Roasted Nuts and Unpeated
  • LIMITED BOTTLES REMAIN
    Bunnahabhain An Cuan Garbh No.2 Bottle Fèis Ìle 2026: An Cuan Garbh No.2 Fino Sherry Cask Finish
    An Cuan Garbh No.2 Fino Sherry Finish
    Regular price £95.00
    ABV 56.7%
    NAS
    Fino Sherry
    Orchard Fruit, Sea Spray, Unpeated
  • Distillery Exclusive
    Bunnahabhain Turas Math No.3 Bottle Bunnahabhain Turas Math No.3 on Bunnahabhain Pier with pack
    Turas Math No.3 19 Year Old Armagnac Cask Finish
    Regular price £375.00
    ABV 50.2%
    19 Years Old
    Armagnac
    Stone Fruit, Caramel and Unpeated
  • Bunnahabhain Ceither Ginealaich Bottle Ceithir Ginealaich
    Ceithir Ginealaich
    Regular price £400.00
    ABV 52.8%
    NAS
    Canasta, Oloroso, Port and Virgin Oak
  • Bunnahabhain 12 Year Old Cask Strength 2025 Edition 12 Year Old Cask Strength: 2025 Edition
    12 Year Old Cask Strength 2025 Edition
    Regular price £90.00
    ABV 56.4%
    12 Years Old
    Oloroso
    Sherry, Nutty, Unpeated
  • Bunnahabhain 27 Year Old Moscatel Cask Finish Bottle Fèis Ìle 2024: 27 Year Old Moscatel Cask Finish
    27 Year Old Moscatel Cask Finish
    Regular price £695.00
    ABV 46.6%
    27 Years Old
    Moscatel
    Floral, Sweet, Nutty
  • Sold Out
    Bunnahabhain An Cuan Garbh No.3 Bottle Fèis Ìle 2026: An Cuan Garbh No.3 Mòine Sherry Cask Finish
    An Cuan Garbh No.3 Mòine Sherry Cask Finish
    Regular price £175.00
    ABV 58.4%
    15 Years Old
    Sherry
    Dried Berries, Warm Spice, Peated
  • Sold Out
    Bunnahabhain Turas Math No.2 Bottle Bunnahabhain Turas Math No.2, a dram and pack sitting on rocks with Bunnahabhain Distillery backdrop
    Turas Math No.2 Palo Cortado Cask Finish
    Regular price £95.00
    ABV 58.4%
    NAS
    Bourbon and Palo Cortado
    Spice, Nutty, Unpeated
Cask Strength Whisky FAQs

What does cask strength whisky mean?

Cask strength (sometimes called barrel proof) means the whisky is bottled at the natural alcohol strength it reaches in the cask, without being diluted with water before bottling. This preserves the whisky's full intensity and character as it developed during maturation.

Should cask strength whisky be diluted?

It can be, but it's personal preference. Many people add a few drops of water to open up the aromas and reduce the alcohol heat. A common approach is to taste it neat first, then gradually add water to find the balance you enjoy most.

How strong is cask strength whisky?

Cask strength whiskies are usually between about 50% and 65% ABV, although this varies depending on age, cask type, and warehouse conditions. This is significantly stronger than the typical 40–46% ABV of standard bottlings.

Is cask strength whisky suitable for beginners?

It can be, but it depends on the drinker. Beginners may find the higher alcohol intensity challenging at first, but adding water can make it much more approachable. Some people actually find it a good learning experience because it shows how water changes flavour and aroma.

How should you drink cask strength whisky?

There's no single correct way, but common approaches include: Neat (to experience the full character) With a few drops of water (to open the flavours) With a small ice cube (to soften the intensity) We'd recommend starting neat and adjusting gradually.

What flavour differences does cask strength create?

Cask strength whisky often delivers: More intense flavours because it isn't diluted Richer mouthfeel with more texture Stronger spice and oak notes Greater aroma complexity A longer finish Adding water can sometimes reveal hidden notes like fruit, chocolate, or spice that may be less noticeable at full strength.