Caol Ila 15 Year Old 2008 (cask CM302) - The Golden Cask (House of MacDuff) vs Glen Spey 21 Year Old (Special Release 2010)
Side-by-side comparison — price, ABV, scores, tasting notes, pros & cons.

Caol Ila 15 Year Old 2008 (cask CM302) - The Golden Cask (House of MacDuff)
Caol Ila
£118

Glen Spey 21 Year Old (Special Release 2010)
Glen Spey
★ 5.00
£134
| Caol Ila 15 Year Old 2008 (cask CM302) - The Golden Cask (House of MacDuff) | Glen Spey 21 Year Old (Special Release 2010) | |
|---|---|---|
| Distillery | Caol Ila | Glen Spey |
| Region | Islay | Speyside |
| Country | Scotland | Scotland |
| Type | Single Malt | Single Malt |
| ABV | 55.7% | 50.4% |
| Age | 15 yr | 21 yr |
| Price | £117.62 | £133.99 |
| Rating | — | 5.00/5 |
Caol Ila 15 Year Old 2008 (cask CM302) - The Golden Cask (House of MacDuff)
Glen Spey 21 Year Old (Special Release 2010)
Caol Ila 15 Year Old 2008 (cask CM302) - The Golden Cask (House of MacDuff)
Glen Spey 21 Year Old (Special Release 2010)
Quick verdict
Glen Spey 21 Year Old (Special Release 2010) is rated higher (5.00 vs 0.00).
Caol Ila 15 Year Old 2008 (cask CM302) - The Golden Cask (House of MacDuff) is better value at £118 vs £134.
For beginners: Glen Spey 21 Year Old (Special Release 2010) is more approachable (60/100 beginner score).
Caol Ila 15 Year Old 2008 (cask CM302) - The Golden Cask (House of MacDuff)
Pros
- +Balanced smoky character without being overwhelming
- +More affordable (£117.62 vs £133.99)
Cons
- −High ABV (55.7%) — may need water
- −Lower community rating (0.0 vs 5.0)
- −Dry and austere — not for those who prefer sweeter drams
Glen Spey 21 Year Old (Special Release 2010)
Pros
- +Approachable and beginner-friendly sweetness
- +Better value for money
- +Higher community rating (5.0/5)
- +Longer maturation (21 vs 15 years)
Cons
- −High ABV (50.4%) — may need water
- −More expensive (£133.99 vs £117.62)
- −Lacks smoke character compared to the alternative
Who should buy Caol?
Caol Ila 15 Year Old 2008 (cask CM302) - The Golden Cask (House of MacDuff) is for enthusiasts who appreciate cask-strength intensity. Best enjoyed with a few drops of water to open up the flavours. Not ideal for casual drinking or beginners.
Who should buy Glen?
Glen Spey 21 Year Old (Special Release 2010) suits those who enjoy sweet, honeyed, or fruity whiskies. It's accessible for beginners and crowd-pleasing enough for gifts. Fans of approachable Speyside or Irish whiskey will love it.
Tasting notes
Only Caol Ila 15 Year Old 2008 (cask CM302) - The Golden Cask (House of MacDuff)
Only Glen Spey 21 Year Old (Special Release 2010)