Mortlach 20 Year Old 1990 - Cask Strength Collection (Signatory) vs Jack Daniel's Single Barrel - Barrel Strength (64.5%)
Side-by-side comparison — price, ABV, scores, tasting notes, pros & cons.

Mortlach 20 Year Old 1990 - Cask Strength Collection (Signatory)
Mortlach
★ 5.00
£90

Jack Daniel's Single Barrel - Barrel Strength (64.5%)
Jack Daniel's
★ 5.00
£70
| Mortlach 20 Year Old 1990 - Cask Strength Collection (Signatory) | Jack Daniel's Single Barrel - Barrel Strength (64.5%) | |
|---|---|---|
| Distillery | Mortlach | Jack Daniel's |
| Region | Speyside | — |
| Country | Scotland | America |
| Type | Single Malt | Tennessee |
| ABV | 57.6% | 64.5% |
| Age | 20 yr | NAS |
| Price | £90.46 | £69.95 |
| Rating | 5.00/5 | 5.00/5 |
Mortlach 20 Year Old 1990 - Cask Strength Collection (Signatory)
Jack Daniel's Single Barrel - Barrel Strength (64.5%)
Mortlach 20 Year Old 1990 - Cask Strength Collection (Signatory)
Jack Daniel's Single Barrel - Barrel Strength (64.5%)
Quick verdict
Jack Daniel's Single Barrel - Barrel Strength (64.5%) is better value at £70 vs £90.
For beginners: Mortlach 20 Year Old 1990 - Cask Strength Collection (Signatory) is more approachable (40/100 beginner score).
Mortlach 20 Year Old 1990 - Cask Strength Collection (Signatory)
Pros
- +Vibrant, fresh fruit character
Cons
- −High ABV (57.6%) — may need water
- −More expensive (£90.46 vs £69.95)
- −Lacks smoke character compared to the alternative
Jack Daniel's Single Barrel - Barrel Strength (64.5%)
Pros
- +Balanced smoky character without being overwhelming
- +Better value for money
- +More affordable (£69.95 vs £90.46)
- +More widely reviewed by the community
Cons
- −High ABV (64.5%) — may need water
Who should buy Mortlach?
Mortlach 20 Year Old 1990 - Cask Strength Collection (Signatory) 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 Jack?
Jack Daniel's Single Barrel - Barrel Strength (64.5%) 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.
Tasting notes
Only Mortlach 20 Year Old 1990 - Cask Strength Collection (Signatory)
Only Jack Daniel's Single Barrel - Barrel Strength (64.5%)
Where to buy
Mortlach 20 Year Old 1990 - Cask Strength Collection (Signatory)
Where to buy
The Whisky Exchange
Jack Daniel's Single Barrel - Barrel Strength (64.5%)
Where to buy
The Whisky Exchange