Updated August 2026.
Both are Irish whiskey. That class is not a celebrity ranking. Irish whiskey must be distilled and matured in Ireland at least three years and bottled at ≥40% ABV. Jameson prints 40% on the nutrition page used in prior rewrites. Proper No. Twelve lists 40.0% ABV / 80 proof on Virginia ABC, confirm the neck. A 1.5-ounce pour of either is one NIAAA drink if the label is 40%.
Related: Jameson, what proof is Jameson, Irish for beginners.
Same floor, different houses
| Jameson | Proper No. Twelve | |
|---|---|---|
| Class | Irish whiskey | Irish whiskey |
| ABV used here | 40% | 40% — VA ABC |
| 1.5 oz drinks | 1.00 | 1.00 |
| Age floor | ≥3 years in Ireland | ≥3 years in Ireland |
A 750 mL 40% bottle is about 17 drinks. Four pours are four drinks. NIAAA binge pattern is a health line, not a target. Pour math: whiskey drinks.
Sources
- Jameson 40% — prior official nutrition (jamesonwhiskey.com blocked ).
- Virginia ABC product tile: Proper No. Twelve 40.0% / 80.0 proof. Brand page did not print ABV.
- Irish whiskey technical file: ≥3 years, ≥40% ABV. NIAAA December 2025.