Updated June 2026.
Cask-count language is not a legal class. “Single cask” or single barrel means one container was bottled. Double-cask and triple-cask are house words for more than one wood type or a finish — the Scotch file still lists single malt, single grain, and the blends. TTB does not make “double cask” a type. Glenfiddich 12 US prints 40% / 80. A 1.5-ounce pour at 40% is one NIAAA drink. Age statements follow
Related: single-barrel bourbon, double-barrel whiskey, single malt.
Wood talk vs class
| Language | 1.5 oz drinks |
|---|---|
| Single cask / single barrel | Scale that neck |
| Double / triple cask | — |
| Single malt Scotch | 1.00 at 40% |
| Glenfiddich 12 US | 1.00 |
A 750 mL 40% bottle is about 17 drinks. Four pours are four drinks. Pour math: whiskey drinks.
Sources
- Scotch Whisky Regulations 2009 categories. 27 CFR 5.143 / 5.74. Glenfiddich 12 US shop 40% / 80.
- NIAAA December 2025.
- 27 CFR 5.74