Updated July 2026.
Sealed vodka does not spoil like beer or wine. US vodka is a US type.142 at 40% or more. Official open-bottle months unused. Keep it sealed, cool, and dark. Flavor can fade after air hits the neck — that is not a TTB clock. Official Tito’s is 40% / 80. A 1.5-ounce 40% pour is one drink. No invented year count.
Related: is vodka from potatoes, does Crown Royal go bad, whiskey unopened.
Seal vs clock
| Language | Drinks |
|---|---|
| US vodka | 1.00 / 1.5 oz |
| Sealed | — |
| Open-bottle months | Neck |
| Tito’s official | 1.00 |
Count pours, not folklore months. Pour math: vodka drinks.
Sources
- 27 CFR 5.142. Official open-bottle months unused.
- titosvodka.com 40% / 80. NIAAA December 2025. No invented year count.
- 27 CFR 5.142 ≥40%
- is 27 CFR 5