Prosecco does go bad, but not in the way most people expect. It won't spoil like food does. What happens instead is that it loses its fizz and its fresh, fruity flavor over time. Whether that's happened to a bottle already open in your fridge or one sitting in a cupboard for a year, this guide covers what you need to know about how long Prosecco lasts, how to store it properly, and the signs it has gone off.
Does Prosecco Expire?
Technically, yes. Prosecco does expire, though most bottles don't carry a strict expiration date. Instead, you'll often see a "bottled on" date or a general recommendation to drink within two to three years of production.
Prosecco is made using the Charmat method, where secondary fermentation happens in a tank rather than in the bottle. This keeps the wine fresh and fruit-forward, but it also means it's designed for early drinking. Prosecco doesn't improve with age the way a Champagne or a structured red wine might. After a few years, the bubbles fade, the aromas flatten, and the wine loses most of what makes it enjoyable.
That said, an old unopened bottle of Prosecco won't make you sick. It will just taste dull.
How Long Does Prosecco Last?
The answer depends on whether the bottle is opened or unopened, and how you're storing it.
| Condition | How Long It Lasts | Notes |
|---|---|---|
| Unopened, stored at room temp | 1 to 3 years | Best within 18 months of production |
| Unopened, stored in the fridge | 1 to 3 years | Fridge storage doesn't extend shelf life significantly |
| Opened, with a stopper | 1 to 3 days | Keep in the fridge; use a sparkling wine stopper |
| Opened, no stopper | A few hours | Carbonation escapes quickly once opened |
The biggest variable for unopened Prosecco is how it was stored. Heat, light, and temperature swings all speed up the aging process. A bottle kept in a cool, dark spot will fare much better than one sitting next to the stovetop or in direct sunlight.
How Long Does Prosecco Last Unopened?
An unopened bottle of Prosecco is generally at its best within one to three years of production. Most entry-level Proseccos, the bottles you pick up at a grocery store or wine shop, are made to be drunk young. The winemaker harvests, ferments, and bottles with freshness in mind, not aging potential.
If you have a bottle with a vintage year on the label, you can usually count forward about two to three years from that year as the window for drinking it at its best. For non-vintage bottles, look for a "bottled on" date if one is printed on the label.
Storing unopened Prosecco upright is fine. Unlike still wine, Prosecco doesn't need to be kept on its side to keep the cork moist, since the pressure inside the bottle keeps the cork sealed without the help of the liquid.
How Long Does Prosecco Last After Opening?
Once you open a bottle of Prosecco, the clock runs fast. Without a stopper, you'll notice the bubbles fading within hours. With a proper sparkling wine stopper that clamps onto the bottle and creates a seal, you can usually get one to three days in the fridge before it goes noticeably flat.
A few things that help preserve an open bottle:
- Use a sparkling wine or champagne stopper, not a standard wine stopper. The clamping mechanism keeps more pressure in the bottle.
- Keep it upright in the fridge. This reduces the surface area of wine exposed to air.
- Don't leave it out at room temperature. Warmth speeds up the loss of carbonation.
If your Prosecco has gone flat but isn't off-smelling, it can still work well in cocktails or in a mimosa where you're mixing it with juice anyway.
Does Prosecco Need to Be Refrigerated?
Unopened Prosecco doesn't need to live in the fridge. It stores fine at room temperature as long as conditions are right: cool, dark, and away from temperature extremes. A cellar, a wine rack in a cool room, or even a cupboard works well.
Once opened, yes, absolutely refrigerate it. Cold slows the loss of carbonation and keeps the wine from oxidizing as quickly. Make sure to use a stopper and store it upright.
One thing worth knowing: if you put a cold bottle of Prosecco in the fridge and then take it out for a while, you can put it back in without any issue. Repeated temperature changes are what tend to accelerate aging, not a single cycle in and out of the fridge.
How to Tell If Prosecco Has Gone Bad
There are a few clear signs that a bottle of Prosecco has gone off or gone past its best:
- No bubbles or very faint fizz: Prosecco should be lively when poured. If it pours flat, the carbonation has been lost.
- Dull or oxidized aroma: Fresh Prosecco smells of apple, pear, white peach, and sometimes flowers. If it smells flat, vinegary, or like old fruit, something has gone wrong.
- Lack of fruit flavor: The taste should be bright and crisp. Prosecco that's past its best tends to taste hollow, slightly bitter, or just bland.
- Color has deepened: Prosecco should be pale yellow or pale gold. A noticeably deeper, more amber color suggests significant oxidation.
If you open a bottle and it smells and tastes fine but just lacks fizz, it's still safe to drink. It simply won't be enjoyable in the way Prosecco is supposed to be.
Can Old Prosecco Make You Sick?
Old Prosecco, even if it's past its best, is very unlikely to make you sick. Wine's alcohol content and acidity create a hostile environment for harmful bacteria. The worst-case scenario is that it tastes flat, stale, or slightly vinegary.
The one situation to watch out for is a bottle that was improperly stored and has an off smell that suggests something has contaminated it. If a Prosecco smells strongly vinegary, moldy, or just wrong, trust that instinct and don't drink it. But this is rare.
Where Is the Expiry Date on Prosecco?
Most Prosecco bottles don't have a traditional expiry date. What you might find instead:
- A vintage year on the label (e.g., 2022). Drink within two to three years of that year.
- A "bottled on" date printed on the back label or near the base of the bottle. Count one to three years from that date as your window.
- No date at all. Many non-vintage Proseccos don't include one. In this case, if you know roughly when you bought it and it's been sitting for more than two years, it's worth opening sooner rather than later.
How to Store Prosecco
Good storage is the biggest factor in how long your Prosecco will hold up. The key principles are:
- Cool temperature: Between 50 and 60 degrees Fahrenheit is ideal. Avoid warm spots like near an oven or in a car.
- Away from light: UV light degrades wine over time. A dark cupboard or wine rack in a shaded spot is better than a sunny counter.
- Consistent temperature: Big swings between warm and cold accelerate aging. Pick a spot with stable conditions.
- Upright is fine: You don't need to store Prosecco on its side. The internal pressure keeps the seal intact.
If you're buying Prosecco as a gift, it pairs well with a personalized label. A personalized sparkling wine bottle makes for a memorable present, and the recipient can store it until they're ready to celebrate. We also have personalized Champagne bottles if you want a bottle with a bit more aging potential behind it.
Frequently Asked Questions
Does Prosecco go off if unopened?
Yes, eventually. Unopened Prosecco is best within one to three years of production. After that it won't be dangerous to drink, but the flavor and fizz will have degraded. Store it in a cool, dark place to get the most out of it.
How long does Prosecco last in the fridge once opened?
With a proper sparkling wine stopper, an open bottle of Prosecco kept in the fridge will stay reasonably fizzy for one to three days. After that, the carbonation fades significantly. Without a stopper, expect a few hours at most.
Should Prosecco be refrigerated before opening?
You don't need to refrigerate Prosecco long-term before opening it. Store it somewhere cool and dark at room temperature. Move it to the fridge a few hours before you plan to serve it so it's chilled to around 40 to 45 degrees Fahrenheit when you open it.
Can Prosecco go out of date?
Yes. Prosecco doesn't have an official expiration date printed on most bottles, but it does have a window where it's at its best: roughly one to three years from production. After that, the quality drops off. Look for a vintage year or "bottled on" date if you're not sure when yours was made.
