Rock Island Sherry Edition vs Mortlach 20 Year Old 1991 - Cask Strength Collection (Signatory)

Side-by-side comparison — price, ABV, scores, tasting notes, pros & cons.

Rock Island Sherry EditionMortlach 20 Year Old 1991 - Cask Strength Collection (Signatory)
DistilleryRock IslandMortlach
RegionIslandSpeyside
CountryScotlandScotland
TypeBlended MaltSingle Malt
ABV46.8%56.4%
AgeNAS20 yr
Price£50£79.42
Rating5.00/55.00/5

Rock Island Sherry Edition

Smoke64/100
Sweetness47/100
Beginner50/100
Value100/100

Mortlach 20 Year Old 1991 - Cask Strength Collection (Signatory)

Smoke0/100
Sweetness53/100
Beginner40/100
Value63/100

Rock Island Sherry Edition

SmokySweetFruitySpicyWoodyFloral

Mortlach 20 Year Old 1991 - Cask Strength Collection (Signatory)

SmokySweetFruitySpicyWoodyFloral

Quick verdict

Rock Island Sherry Edition is better value at £50 vs £79.

For beginners: Rock Island Sherry Edition is more approachable (50/100 beginner score).

Rock Island Sherry Edition

Pros

  • +Balanced smoky character without being overwhelming
  • +Better value for money
  • +More affordable (£50 vs £79.42)
  • +More widely reviewed by the community

Cons

  • Niche style — may not suit all palates

Mortlach 20 Year Old 1991 - Cask Strength Collection (Signatory)

Pros

  • +Vibrant, fresh fruit character

Cons

  • High ABV (56.4%) — may need water
  • More expensive (£79.42 vs £50)
  • Lacks smoke character compared to the alternative

Who should buy Rock?

Rock Island Sherry Edition suits whisky enthusiasts looking for a well-rounded, complex dram. It rewards those with some experience and an appreciation for Island character.

Who should buy Mortlach?

Mortlach 20 Year Old 1991 - 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.

Tasting notes

Both taste of

SherriedDried Fruit

Only Rock Island Sherry Edition

SmokeySandyNutty

Only Mortlach 20 Year Old 1991 - Cask Strength Collection (Signatory)

Old WoodChocolateToasted

Where to buy

Rock Island Sherry Edition

Mortlach 20 Year Old 1991 - Cask Strength Collection (Signatory)

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