American Sour Mash 5 Year Old (cask P311) - The Single Cask vs Islay #4 11 Year Old (That Boutique-y Whisky Company)
Side-by-side comparison — price, ABV, scores, tasting notes, pros & cons.

American Sour Mash 5 Year Old (cask P311) - The Single Cask
The Single Cask
★ 5.00
£65

Islay #4 11 Year Old (That Boutique-y Whisky Company)
That Boutique-y Whisky Company
★ 5.00
£67
| American Sour Mash 5 Year Old (cask P311) - The Single Cask | Islay #4 11 Year Old (That Boutique-y Whisky Company) | |
|---|---|---|
| Distillery | The Single Cask | That Boutique-y Whisky Company |
| Region | — | — |
| Country | England | Scotland |
| Type | Grain | Single Malt |
| ABV | 59.7% | 48.8% |
| Age | 5 yr | 11 yr |
| Price | £64.95 | £66.95 |
| Rating | 5.00/5 | 5.00/5 |
American Sour Mash 5 Year Old (cask P311) - The Single Cask
Islay #4 11 Year Old (That Boutique-y Whisky Company)
American Sour Mash 5 Year Old (cask P311) - The Single Cask
Islay #4 11 Year Old (That Boutique-y Whisky Company)
Quick verdict
American Sour Mash 5 Year Old (cask P311) - The Single Cask is better value at £65 vs £67.
For beginners: American Sour Mash 5 Year Old (cask P311) - The Single Cask is more approachable (55/100 beginner score).
American Sour Mash 5 Year Old (cask P311) - The Single Cask
Pros
- +Approachable and beginner-friendly sweetness
- +Better value for money
- +More affordable (£64.95 vs £66.95)
Cons
- −High ABV (59.7%) — may need water
- −Lacks smoke character compared to the alternative
Islay #4 11 Year Old (That Boutique-y Whisky Company)
Pros
- +Balanced smoky character without being overwhelming
- +Longer maturation (11 vs 5 years)
- +More widely reviewed by the community
- +Vibrant, fresh fruit character
Cons
- −More expensive (£66.95 vs £64.95)
Who should buy American?
American Sour Mash 5 Year Old (cask P311) - The Single Cask 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.
Who should buy Islay?
Islay #4 11 Year Old (That Boutique-y Whisky Company) suits whisky enthusiasts looking for a well-rounded, complex dram. It rewards those with some experience and an appreciation for Single Malt character.
Tasting notes
Only American Sour Mash 5 Year Old (cask P311) - The Single Cask
Only Islay #4 11 Year Old (That Boutique-y Whisky Company)