Does Prosecco Go Bad? Unopened, Opened, Old and Flat

Yes, Prosecco can lose its fizz and fresh fruit over time. Its makers say to drink it young, and an opened bottle fades fast. Here is what the Prosecco consortia and producers recommend, where they disagree, and where the gaps are.

Does Prosecco go bad?

The short answer: Yes, Prosecco loses fizz, fruit and freshness over time, and these are quality windows, not expiration dates. The Prosecco DOC and Conegliano Valdobbiadene consortia recommend enjoying it in the year following harvest, and Bisol says 12 to 24 months after bottling for its Superiore. Once opened, use a sparkling-wine stopper and refrigerate. Luna Nuda says 1 to 3 days, and Gambero Rosso says 2 to 3. TTB’s mandatory wine label checklist lists no expiration date.

For a complete pantry storage reference, see our Food Storage Guide.

Which Prosecco Do You Have?

Start with the bottle in front of you, because an unopened bottle and an opened one run on very different clocks. These are consortium and producer recommendations for drinking quality, not expiration dates or safety cutoffs.

How Long Does Unopened Prosecco Last?

The Prosecco DOC Consortium’s five things page says Prosecco DOC is not a wine to be stored. It says the wine should preferably be consumed within the year following harvest, while it is at its aromatic and carbonic best. The page was published in 2021 and last modified in February 2024, per its metadata. The Prosecco DOC Consortium’s taste page (modified February 2024) says the year after the harvest is the best time to drink PDO Prosecco. It says bottles must be kept in a cool and dry place, far from light and sources of heat.

The Conegliano Valdobbiadene Consortium’s storage and service page (last modified April 2025) says the qualities of its Prosecco Superiore can be enjoyed to the full in the year following the harvest. It says that over the years the aromas evolve from fruity and floral notes to more mature, vinous ones. It says to keep bottles in a cool, dry place, away from light and heat.

Bisol’s Cartizze page says Prosecco Superiore should be enjoyed young and best expresses its qualities between 12 and 24 months after bottling. It adds that the fruity, perfumed flavors of the young wine develop with time, ripening and becoming more evidently vinous. That is Bisol’s guidance for its own wines, not a universal maximum for every Prosecco. The page was last modified in September 2026. La Marca’s serving page says Prosecco is crafted to be served soon after purchase.

Producer Bottega’s advice varies by wine. Bottega’s spec sheet for its Gold Prosecco DOC Spumante Brut (undated) says to enjoy it within 18 months. Elsewhere Bottega argues for longer. The Drinks Business’s 2018 interview with Sandro Bottega (October 2018) says it is not true that Prosecco lasts only a few months. Sandro Bottega says Prosecco from the highest hills of Conegliano and Valdobbiadene can age five years in the bottle.

Bottega’s vertical tasting post (last modified December 2024) describes a tasting of 2013 to 2017 vintages of one of its wines, meant to show that a good Prosecco can last longer than the usual two years. The critics it quotes are mixed. One says Prosecco has a modest shelf life of about 5 years if cellared properly, and calls the 2013 slightly oxidized with a full mousse. Another says the 2013 was not at its best but kept its mousse. That is a producer’s own event with comments the producer chose to publish.

Wine Spectator’s 2019 Nino Franco story (November 2019) describes a tasting of far older Nino Franco bottles. A 1947 Cartizze had lost its bubbles and was oxidized from its very long bottle ageing, though Wine Spectator wrote that it was still alive. The 1955 wines were more like Sherry than Prosecco. Those bottles are decades older than anything most readers hold, so they say little about a bottle a few years old (ours). Here is how the sources line up.

Our rule: if the label shows a harvest year, aim to open the bottle in the year after it. The consortia count from harvest, Bisol from bottling, and your purchase date is neither. With no year on the label, buying a recent bottle and drinking it within about a year of purchase is our practical rule (ours), not a consortium window. Bottega’s longer figures apply to its top wines.

How Long Does Opened Prosecco Last?

Producer guidance on opened bottles is thin, but it exists. Luna Nuda’s Prosecco page says an opened bottle lasts about one to three days if you reseal it well and keep it in the fridge. Luna Nuda is a Prosecco DOC brand made by Cantina Montelliana. Luna Nuda’s blog post on opened wine (July 2026) gives the same 1 to 3 days for Prosecco and Prosecco Rosé resealed with a proper stopper. It says a dedicated sparkling stopper works better than pushing the cork back in.

Mionetto’s entertaining tips page says an opened bottle should be kept chilled with a bottle stopper to keep the bubbles inside and the wine fresh. La Marca says to keep an opened bottle on ice between pours. Neither gives a number of days.

Two outside sources give figures for sparkling wine. Gambero Rosso International’s spoon article (December 2024) says to finish an opened bottle within two or three days. It says the only solution is to seal the bottle airtight, and that the refrigerator slows the loss of bubbles. WSET’s guide to keeping opened wine fresh (March 2023) says a Champagne stopper can keep bubbles going for up to five days. It adds that traditional method sparkling wines like Champagne and Cava will last longer than tank method wines like Prosecco. So five days is an upper figure for sparkling wine in general, and Prosecco should fall below it. For Champagne, the Comité Champagne’s FAQ says one or two days with an airtight cap.

Wine Spectator’s Dr. Vinny column on stoppers (updated January 2025) answers a reader asking about Champagne or Prosecco. Dr. Vinny says stoppers work quite well and give an extra day or two of life without losing much carbonation. He says they don’t fit every bottle shape, and that the bottle should be stored upright in the refrigerator.

On the spoon trick, Scientific American’s spoon article describes a test led by Stanford chemist Richard Zare in 1994. Bottles were refrigerated for 26 hours with different methods, and the testers did not detect any boost in sparkle from a spoon. The article says a stopper or cork prevented the gas escape, while bottles left open lost pressure the same way with or without a spoon. It also quotes Zare saying some sparkling wines are so saturated with carbon dioxide that they can remain bubbly in the fridge for days, even without a stopper. The article doesn’t say which wines, so a stopper remains the dependable choice (ours).

These are windows for fizz and freshness, not safety cutoffs. We’d aim for one to two days, at the short end of Luna Nuda’s range (ours). Put the stopper back right after you pour, and keep the bottle in the refrigerator between glasses. Planning a spritz? Our guide to whether Aperol goes bad covers the other half of the drink.

Does Prosecco Have an Expiration Date?

TTB’s mandatory wine label checklist lists the information a US wine label must carry, such as brand name, class and type, appellation of origin and alcohol content. The list also has net contents, the name and address, a sulfite declaration and a health warning. It lists no expiration date, best-by date or bottling date. TTB notes that the document does not provide comprehensive labeling guidance, and it covers US labeling, so a given bottle may carry dates the checklist doesn’t require.

What you can read is the vintage, if there is one. The Prosecco DOC regulation says a label using the word Millesimato must show the year the grapes were produced, and at least 85% of the wine must come from that vintage. TTB’s label guide describes a vintage date as the year of the harvest of the grapes. The regulation otherwise lists the vintage year as optional, so a non-vintage bottle may show none.

For Prosecco DOC spumante rosé, the regulation requires the word Millesimato and the harvest year on the label. It also says the rosé is marketed starting from the first day of January of the year following the harvest. So a Prosecco DOC spumante rosé always tells you its harvest year.

The Alcohol Professor’s 2017 post on dating non-vintage Prosecco says nothing on a non-vintage bottle indicates when it was filled, and that producer lot numbers can sometimes be looked up on a producer’s site. That is one writer’s 2017 account, so check the producer’s site yourself. If a non-vintage bottle shows no year, the purchase date is the best clue (ours). A bottle that sat on a shop shelf in light or warmth may be older in effect than its time with you suggests (ours).

How Can You Tell If Prosecco Is Bad?

We found no Prosecco consortium or producer page that lists signs of spoilage. What follows borrows from wine science and Champagne sources, so treat the application to Prosecco as our reading.

WSET’s wine faults guide (August 2023) says volatile acidity is a fault that can occur with oxidation, and that at higher concentrations it can make wine smell like vinegar or nail polish. It doesn’t discuss sparkling wine. Penn State Extension’s volatile acidity article (updated June 2025) says acetic acid is the main volatile acid in wine and the one associated with the smell and taste of vinegar. It says one key aroma winemakers associate with volatile acidity is ethyl acetate, which smells like nail polish or some nail polish removers. It links high levels to overexposure to oxygen or poor sulfur dioxide management. The article is written for winemakers.

Laurent-Perrier’s page on how long Champagne keeps says a protruding cork or sour smell may indicate a problem. That is about Champagne, and we apply it to Prosecco as a precaution (ours). Prosecco is meant to be fresh and acidic, and Wine Spectator says a col fondo can taste more sour than typical Prosecco. So judge by an unexpected, unpleasant vinegar-like smell, not by tartness alone (ours). Not every deteriorated bottle will smell like vinegar. We don’t suggest tasting it to test.

Several competing pages cite a browner color as a sign of spoilage. We found no Prosecco source on color, so we treat it as a possible sign of oxidation, not a test (ours). Faded fruit and weak bubbles are ordinary age. The Conegliano Valdobbiadene Consortium describes the aromas moving from fruity and floral to more mature and vinous over the years. We read that, and a flat glass, as quality changes more than safety signs (ours). We found no maker or agency source on illness from old Prosecco. Two competing pages say old Prosecco is unlikely to make you sick, but they cite no source, so we don’t repeat that.

How Should You Store Prosecco?

The sources are short on detail, because they don’t expect long storage. The Conegliano Valdobbiadene Consortium says cool, dry, away from light and heat. Bisol says a cool, dark, dry place with a steady temperature between 12 and 15°C, which is 54 to 59°F. La Marca says a cool, dark place.

On position, La Marca recommends keeping unopened bottles upright. Bisol says to store the bottle vertically for the first year, after which it can lie horizontal to help the flavors develop. The Prosecco DOC Consortium says Prosecco DOC is not a wine to be stored at all. Follow your producer’s advice, and upright is the common ground between the two producers we read.

We found no Prosecco source on humidity, vibration or odors. Our tip: a closet or cupboard away from the stove, dishwasher and sunny windows is a good home for a bottle you plan to open within months. The counter next to the oven is the worst spot (ours).

Does Prosecco Need to Be Refrigerated?

The Prosecco DOC Consortium says to serve Prosecco chilled, straight from the fridge, at 6 to 8 degrees maximum, the colder the better, because it warms up in any environment anyway. The Conegliano Valdobbiadene Consortium and Bisol give 6 to 8°C, which is 43 to 46°F. Bottega’s spec sheet says 4 to 5°C. La Marca and Mionetto say 40 to 45°F, and Mionetto adds there is no set rule.

For timing, La Marca says a refrigerator at or around 40°F will get a bottle there if you have an hour or two. It says that for a faster chill, use an ice bucket with water and ice. Mionetto says about 20 minutes in an ice bucket. The Prosecco DOC Consortium says the bottle should be plunged into ice at least to the start of the neck.

We found no Prosecco source on keeping unopened bottles in the refrigerator for long. The Comité Champagne advises against it for Champagne, and we’d follow that caution (ours). Chill the bottle you plan to open and store the rest somewhere cool. Once opened, Luna Nuda, La Marca and Mionetto all say to keep it chilled.

Wine Spectator’s Ask Dr. Vinny column (February 2026) answers a reader that you won’t damage wines by chilling, unchilling and chilling them again. That column is about wine in general, not Prosecco in particular. Our tip: chill only what you plan to open.

Can You Drink Flat Prosecco?

We found no maker or agency source that calls flat Prosecco unsafe, and none that sets a safety cutoff for an opened bottle. The consortia describe the wine as at its best young, so flat means an opened bottle is past its best for fizz and freshness. A strong, unpleasant vinegar-like smell is a different matter, as covered above.

We found no Prosecco maker guidance on cooking with old bottles. Laurent-Perrier says older Champagne can go into sauces, risottos, desserts and cocktails. Using leftover Prosecco that way is our suggestion, and only while it is still inside the windows above and has been kept chilled and stoppered (ours). Don’t rely on smell alone, and remember that cooking doesn’t make a questionable bottle safe.

Planning mimosas? Try our caramel apple cider mimosas recipe, and remember the juice has its own clock, see our guide to whether orange juice goes bad. Our guide on cooking wine covers wine in the pantry, which is a different product.

Does Prosecco Go Bad FAQ

How long does opened Prosecco last?

Luna Nuda, a Prosecco DOC brand, says about 1 to 3 days with a proper stopper in the refrigerator. Gambero Rosso says finish an opened sparkling wine within two or three days. WSET says a good stopper can keep bubbles up to five days, with Prosecco lasting less than Champagne. We’d aim for 1 to 2 days (ours).

See also

Bar & Spirits Guide

Does Triple Sec Go Bad? Cointreau Shelf Life Explained

Further Reading

• Does Champagne Go Bad?
• Food Storage Guide