Updated April 2026.
Store tequila upright, cool, and out of the sun. Glass does not continue agave aging. 27 CFR 5.148 is a US class floor (≥40% ABV; tequila is Mexico-made). USDA’s 2-hour leftover rule is perishable cooked food, not a sealed spirit. We will not invent an opened-month clock. The old “drink it within a year” line is unused.
Freezer science: can tequila freeze. Same cabinet hygiene for grain spirits: how to store bourbon, how to store whiskey at home.
What actually matters in a cabinet
US-labeled tequila is an agave spirit bottled at or above 40% ABV (27 CFR 5.148). The type “Tequila” is a distinctive product of Mexico — made in Mexico, under Mexican law. None of that identity work happens again in glass on a US shelf. Heat, UV, and a loose stopper change what you smell. That is quality drift, not a second resting period in wood.
| Situation | What is true | What it is not |
|---|---|---|
| Upright on a cool, dark shelf | Standard spirit storage; high-ABV liquid can chew a cork if it soaks for years | A wine-style “must wet the cork” statute |
| Sealed glass, out of sun | The bottle keeps the class it had at bottling | “Gets better for 10 more years in the cabinet” |
| Opened, half empty, warm, sunny | More air in the neck; aroma can flatten | A USDA leftover case or a CRT month clock |
| Decanter with a poor seal | More oxygen than a factory stopper | An age-class upgrade |
| Refrigerator or freezer | Makes the pour colder; volatiles quieter | A spoilage-prevention requirement |
Stand bottles up. The 2022 URL treated liquor-store boxes, climate-controlled units, and a 55–60°F room as if they were a statute. High-proof spirit is a solvent. Long contact can crumble a natural cork. That is storage hygiene, not 27 CFR and not a generic NOM. Unused as a statute. We will not invent a NOM for generic tequila. CRT numbers belong to a named producer. Read the neck if you need one.
A stable indoor room beats a window, a car trunk, or the top of a fridge. We will not lock “55–60°F” as a TTB or CRT range. Blanco, reposado, and añejo are Mexican age classes earned before bottling. The cabinet does not move a bottle from one class to another.
Opened vs sealed — no invented months
The 2022 URL told readers to finish an opened bottle “within a year or a few months” and called unopened tequila “unlimited.” TTB publishes no consumer month clock for agave spirits. Unused. A sealed 40% tequila does not spoil like leftover chili. USDA/FSIS leftovers: refrigerate perishable cooked food within 2 hours (1 hour if hotter than 90°F). That chart is chicken and casseroles. It is not a sealed 40% fifth.
A swollen, leaking, or obviously contaminated bottle is a discard. A five-year-old sealed blanco that tastes like release day is storage, not a USDA leftover case. Flavor can fade after air sits in the neck. Decanting a nearly empty bottle into a smaller sealed glass is a quality trick, not a legal duty. No 2026 MSRP. No insurance lecture. No plastic-leaching chemistry we did not land as a primary this fetch.
A 1.5 oz pour of 40% tequila is one NIAAA standard drink. Storage does not change that math. A 750 mL fifth and a 1.75 L handle do not “age” at different rates in glass. The larger bottle just holds more air once it is half empty. A freezer will not freeze typical 40% tequila solid and is not required for safety — see can tequila freeze. Putting the bottle in the fridge is a serving choice. It does not “keep it safe.”
If the label is 100% agave or mixto, the cabinet still does not rewrite the mash. 27 CFR 5.148 lets US labels use “tequila” when the spirit meets the Mexican standard. That is identity, not a home-aging project. Age statements on rum, brandy, and agave spirits are optional under 27 CFR 5.74(c) except where that section requires them for other classes. Glass is still not a barrel.
What we will not print
- No opened “a year / a few months” folklore clock.
- No 55–60°F lock as TTB or CRT.
- No USDA 2-hour leftover rule applied to sealed spirits.
- No invented generic NOM.
- No shop overlay. No 2026 MSRP.
Sources
- 27 CFR 5.148: agave spirits ≥40% ABV; tequila is Mexico-made under Mexican law.
- 27 CFR 5.74(c): age statements on agave spirits are optional (not a bottle-aging clock).
- USDA FSIS leftovers: perishable cooked food within 2 hours — not a sealed spirit.
- FoodSafety.gov Chill: freezer 0°F (−18°C) is a food appliance line, not a tequila spec.
- Old opened-year / 55–60°F clocks — unused.