How long does opened sparkling wine last?

Quick answer

Opened sparkling wine is usually best drunk within a day, but it may retain reasonable fizz and freshness for one to two days if you reseal it immediately with a purpose-built sparkling-wine stopper and keep it refrigerated.

Some wine-industry guidance allows around two to three days in favourable conditions. Treat that as a practical outer possibility, not a promise. The wine’s quality declines continuously after opening: carbon dioxide escapes, reducing the bubbles, while oxygen gradually dulls the aromas and flavours.

In a warm Australian kitchen or during summer, leaving the bottle on the table can shorten that window. If possible, reseal it straight away and return it to the refrigerator.

How to keep opened sparkling wine fresh

1. Reseal it immediately. Use a stopper designed for sparkling wine, with a secure seal that grips the bottle neck. These stoppers are made to cope with the pressure in sparkling wine.
2. Keep it cold. Refrigeration slows the loss of freshness and helps the wine retain its dissolved carbon dioxide. Avoid direct sunlight, warm rooms and kitchen heat.
3. Handle it gently. Repeatedly opening, moving or shaking the bottle encourages more fizz to escape.
4. Drink it sooner if little remains. A nearly empty bottle contains more air space compared with the amount of wine. That extra headspace makes it harder to preserve both freshness and carbonation.

The type of sparkling wine can also make a difference, but there is no reliable day-by-day formula for every style, bottle size or closure. Think of one to two days as a sensible household guide rather than a laboratory shelf-life specification.

Why does sparkling wine go flat?

Sparkling wine contains dissolved carbon dioxide. Once the bottle is opened, some of that gas escapes into the air. Over time, the wine loses pressure and feels less lively on the palate.

Opening also exposes the wine to oxygen. This can gradually make its aromas and flavours seem dull, tired or stale. Fizz and freshness do not always decline at exactly the same rate: a wine may still smell acceptable while tasting flat, or retain some bubbles while its aromas have faded.

A dedicated sparkling-wine stopper is therefore more useful than simply placing the original cork loosely back in the bottle. The familiar spoon-in-the-neck method is a myth for preserving bubbles; use a proper stopper instead.

How can you tell if it has declined?

Pour a small amount and check both the aroma and the texture. It may have passed its best if it has:

• very few or no bubbles;
• a flat or tired mouthfeel;
• muted or dull aromas;
• stale, bruised-apple or vinegary notes; or
• an unusual appearance.

Flatness alone usually indicates a quality problem, not an automatic safety deadline. However, do not taste the wine if the bottle or closure is damaged, the wine appears contaminated, or it has an obviously abnormal odour or appearance. Follow any storage instruction on the label, particularly advice to refrigerate after opening or consume within a stated period.

In Australia, “sparkling wine” is the general term. Champagne is a protected regional name, so it should not be used as a generic name for every Australian sparkling wine.

Frequently asked questions

Does putting a spoon in the bottle keep sparkling wine fizzy?

No. The spoon-in-the-neck method is not supported as a reliable way to preserve bubbles. A purpose-built sparkling-wine stopper is the better choice.

Should an opened sparkling wine bottle be stored upright or on its side?

For this short storage period, either position can work if the stopper is secure. Choose the position that keeps the bottle stable and prevents the stopper from being knocked loose.

Is flat sparkling wine unsafe to drink?

Not automatically. Flatness mainly means the wine has lost quality. Do not drink it if there are signs of contamination, a damaged container, or an unusual smell or appearance.