Mortlach 20 Year Old 1997 (cask 7911318) - The Octave (Duncan Taylor) vs Dewar's 25 Year Old Signature
Side-by-side comparison — price, ABV, scores, tasting notes, pros & cons.

Mortlach 20 Year Old 1997 (cask 7911318) - The Octave (Duncan Taylor)
Mortlach
£229

Dewar's 25 Year Old Signature
Dewar's
★ 5.00
£202
| Mortlach 20 Year Old 1997 (cask 7911318) - The Octave (Duncan Taylor) | Dewar's 25 Year Old Signature | |
|---|---|---|
| Distillery | Mortlach | Dewar's |
| Region | Speyside | Other Scotch |
| Country | Scotland | Scotland |
| Type | Single Malt | Blended |
| ABV | 48.4% | 40% |
| Age | 20 yr | 25 yr |
| Price | £229 | £201.99 |
| Rating | — | 5.00/5 |
Mortlach 20 Year Old 1997 (cask 7911318) - The Octave (Duncan Taylor)
Dewar's 25 Year Old Signature
Mortlach 20 Year Old 1997 (cask 7911318) - The Octave (Duncan Taylor)
Dewar's 25 Year Old Signature
Quick verdict
Dewar's 25 Year Old Signature is rated higher (5.00 vs 0.00).
Dewar's 25 Year Old Signature is better value at £202 vs £229.
For beginners: Dewar's 25 Year Old Signature is more approachable (85/100 beginner score).
Mortlach 20 Year Old 1997 (cask 7911318) - The Octave (Duncan Taylor)
Pros
- +Distinctive flavour profile appreciated by enthusiasts
Cons
- −More expensive (£229 vs £201.99)
- −Lower community rating (0.0 vs 5.0)
Dewar's 25 Year Old Signature
Pros
- +Approachable and beginner-friendly sweetness
- +Great entry point for new whisky drinkers
- +Better value for money
- +Higher community rating (5.0/5)
Cons
- −Niche style — may not suit all palates
Who should buy Mortlach?
Mortlach 20 Year Old 1997 (cask 7911318) - The Octave (Duncan Taylor) suits whisky enthusiasts looking for a well-rounded, complex dram. It rewards those with some experience and an appreciation for Speyside character.
Who should buy Dewar's?
Dewar's 25 Year Old Signature is an ideal first whisky — sweet, approachable, and widely available. It's a great gift and a safe choice for anyone new to whisky or who prefers lighter, friendlier drams.
Tasting notes
Both taste of
Only Mortlach 20 Year Old 1997 (cask 7911318) - The Octave (Duncan Taylor)
Only Dewar's 25 Year Old Signature