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

Dewar's 25 Year Old Signature
Dewar's
★ 5.00
£202

Mortlach 20 Year Old 1997 (cask 7911318) - The Octave (Duncan Taylor)
Mortlach
£229
| Dewar's 25 Year Old Signature | Mortlach 20 Year Old 1997 (cask 7911318) - The Octave (Duncan Taylor) | |
|---|---|---|
| Distillery | Dewar's | Mortlach |
| Region | Other Scotch | Speyside |
| Country | Scotland | Scotland |
| Type | Blended | Single Malt |
| ABV | 40% | 48.4% |
| Age | 25 yr | 20 yr |
| Price | £201.99 | £229 |
| Rating | 5.00/5 | — |
Dewar's 25 Year Old Signature
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)
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).
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
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)
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.
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.
Tasting notes
Both taste of
Only Dewar's 25 Year Old Signature
Only Mortlach 20 Year Old 1997 (cask 7911318) - The Octave (Duncan Taylor)