How Long Does an Open Bottle Last?
Once you open a bottle, the clock starts. Here's how long different wines stay at their best — and the simple techniques that buy you more time.
- Most still wines stay good for 2–4 days after opening if recorked and refrigerated — even reds.
- Sparkling wines go flat within 24 hours without a proper stopper, but a dedicated Champagne stopper buys you 2–3 days.
- Fortified wines (port, sherry, Madeira) last weeks to months after opening because the high alcohol slows oxidation.
- The main enemy of an open bottle is oxygen — reducing contact with air (smaller vessel, proper stopper, cold) extends life significantly.
You opened a bottle for a weekday dinner and didn't finish it. Now what? The good news: most wines have more life in them than people assume, if you store them correctly. The bad news: the clock really does start when the cork comes out, and some wines decline faster than others.
What happens when you open a bottle
Wine reacts with oxygen immediately and continuously after opening. In the first hour or two, this is usually positive — the wine "opens up," releasing aromas and softening tannins. This is the same principle as decanting, done more slowly. After that, continued oxidation starts to break down the wine's structure: fruit fades, acidity becomes more prominent, complex aromas flatten. Eventually the wine tastes thin, sour, or vinegary.
The speed of this process depends on the wine's structure (how much acidity, tannin, and alcohol it has), how full the bottle is (a half-full bottle has more oxygen in contact with the wine than a near-full bottle), and how you store it.
How long by wine type
Light whites and rosé — 1–3 days
Sauvignon Blanc, Pinot Grigio, Muscadet, Vinho Verde, most dry rosé. These are fragile — they lose their freshness and aromatic lift quickly. Refrigerate, cork tightly, and drink within two to three days. Day one is usually best; day three is the outer limit.
Full-bodied and oaked whites — 3–5 days
White Burgundy, oaked Chardonnay, Viognier. The extra richness and structure gives them more resilience. Refrigerate and taste before using. Many of these actually improve slightly on day two as they open up.
Light reds — 2–3 days
Pinot Noir, Gamay, lighter Merlot. These have less tannin to act as a preservative. Refrigerate (yes, reds too — take them out 20 minutes before pouring) and drink within three days.
Full-bodied reds — 3–5 days
Bordeaux, Barolo, Cabernet Sauvignon, Syrah, Chianti Classico. Higher tannin and acidity give these more staying power. Many benefit from being left open for a day — the secondary aromas develop. By day five the fruit usually starts to fade; day six and beyond, decline is noticeable.
Sparkling wines — 1–2 days
Champagne, Crémant, Prosecco, Cava. The main concern is losing the bubbles, which happens fast. A spoon in the neck (a popular myth) does nothing. A dedicated Champagne stopper — a clamp-down metal closure — genuinely works and keeps decent fizz for two to three days if refrigerated. Without a stopper, drink it the same day.
Dessert wines (Sauternes, Tokaj, late harvest) — 5–7 days
The high residual sugar acts as a natural preservative alongside the acidity. Keep in the fridge. A sweet Riesling Spätlese can last a week; a full Sauternes or a TBA can survive even longer.
Fortified wines — weeks to months
Port, sherry, Madeira, Marsala. The high alcohol (typically 17–22%) dramatically slows oxidation. A tawny port or an amontillado sherry can sit open for weeks. Even a lighter fino sherry (which is the most delicate of the category) will last 1–2 weeks refrigerated. Vintage port is the exception: once decanted, drink it within a day or two.
Simple techniques to extend life
Refrigerate everything. Cold slows oxidation. Even reds benefit — just take them out 20 minutes before you pour. This is the single most effective thing you can do.
Re-seal properly. The original cork works if you can get it back in — push it in upside-down if it's too wide. A rubber wine stopper is more airtight. Avoid leaving a bottle with just the cork balanced on top.
Transfer to a smaller vessel. If you have half a bottle left, pour it into a clean 375ml bottle and seal it. Less headspace means less oxygen contact.
Vacuum pumps (such as Vacu Vin) remove some of the air from the bottle. They're somewhat effective — they buy you an extra day or so. They're not a substitute for the fridge and a good seal, but they're better than nothing.
Inert gas sprays (Coravin-style or a simple gas can like WineKeeper) replace the air in the bottle with argon or nitrogen, preventing oxidation altogether. These work well and are worth using for expensive bottles you're not planning to finish quickly.
Unsure about a leftover bottle? Describe it to our sommelier and we'll give you an honest answer.
Questions we get asked
Can wine go bad in a way that makes you sick?
Oxidised or vinegary wine is unpleasant but not harmful. The acetic acid that develops is the same as in food vinegar. There's no safety risk — it just tastes bad.
Does cooking wine need to be fresh?
No. A wine that's past drinking is usually fine for cooking — heat drives off most off-flavours. Don't cook with something that smells actively unpleasant; otherwise, that three-day-old Merlot is perfectly fine for a braise.
What's the spoon trick for keeping Champagne fizzy?
It doesn't work. Tests consistently show the spoon has no effect on carbonation. A proper Champagne stopper is CHF 8–15 and actually works.
Is a wine still good if it smells slightly vinegary?
Taste it. If it's hollow and sour with no fruit, it's done. If the vinegary note is faint and you can still taste fruit, it's probably fine to finish today — it won't improve, but it's harmless.