How Long Does Opened Wine Last?
Opened wine lasts 3–5 days for most reds and whites, 1–3 days for sparkling wine, and up to 28 days for fortified wines like port or sherry. The key variables are oxygen exposure, temperature, and residual sulfite levels. Re-cork the bottle as soon as possible, store it in the refrigerator (yes, even red wine), and keep it upright so less surface area touches air. Cooking wine and boxed wine with a sealed inner bag last significantly longer.
Key Takeaways
- Oxidation is the main reason opened wine degrades.
- Boxed wine with an unbroken inner bag lasts 4–6 weeks after opening because the bag collapses as wine is poured, limiting oxygen exposure.
- Cooking with old wine is fine — heat drives off volatile off-flavors, and vinegary wine still works in stews, braises, and pan sauces.
Explanation
Oxidation is the main reason opened wine degrades. Once oxygen reaches the wine, acetic acid bacteria convert alcohol to acetic acid, which is why wine eventually tastes vinegary. Tannins (more abundant in red wine) slow this slightly, which is why bold reds sometimes last a day or two longer than delicate whites. But the difference is smaller than most drinkers think — both categories belong in the fridge after opening, even if you serve red wine near room temperature. For context on how other opened beverages age, see how long juice stays good after opening.
Sparkling wine loses its carbonation quickly once the pressure seal is broken, typically going flat within 1–3 days even with a dedicated champagne stopper. A metal champagne stopper that clamps onto the bottle's lip preserves bubbles longer than a regular cork pushed back in. Storing the bottle upright in the coldest part of the fridge (the back of the bottom shelf, usually 34–38°F) helps, since cold liquid holds dissolved CO₂ better than warm.
Fortified wines — port, sherry, Madeira, vermouth — last the longest because added spirits raise the alcohol content to 15–22% ABV, which slows microbial activity dramatically. Dry vermouth should be refrigerated and used within a month; sweet vermouth keeps about 3–4 weeks. Tawny port and oxidative sherries (oloroso, amontillado) are already partially oxidized, so opened bottles can last 1–2 months with minimal quality change.
Preservation tools extend the window modestly. Vacuum pumps (Vacu Vin-style) remove most air from the bottle and add 2–3 days. Inert gas sprays (argon or nitrogen) lay a protective layer over the wine and add 3–7 days. The gold standard is the Coravin system, which pierces the cork with a needle and replaces extracted wine with argon — with that, wine can stay fresh for months. For casual drinkers, just re-corking and refrigerating is 90% of the benefit at zero cost. For similar shelf-life patterns with other acidic pantry staples, see whether hot sauce expires.
Things to Know
- Boxed wine with an unbroken inner bag lasts 4–6 weeks after opening because the bag collapses as wine is poured, limiting oxygen exposure.
- Cooking with old wine is fine — heat drives off volatile off-flavors, and vinegary wine still works in stews, braises, and pan sauces.
- Wine that tastes flat but isn't actively vinegary may just need to 'breathe' longer in the glass; swirl vigorously before deciding it's spoiled. If the bottle tastes clearly off, see whether wine goes bad for spoilage signs.
- Screw-cap wines keep as long as corked wines once opened — the closure type matters at bottling, not after.
- Homemade wine or unsulfited natural wines deteriorate faster (1–2 days) because they lack the preservative effect of added sulfites.