Does Champagne Go Bad or Expire? How Long It Lasts, Opened and Unopened

Champagne doesn’t expire the way milk does. There’s no date on the bottle and nothing in it that can make you sick. It does go off, though. Sealed, it loses freshness over a few years; opened, it loses its fizz in a few days. How long a bottle keeps depends on which kind it is and whether the cork is still in.

Champagne shelf life at a glance

The unopened figures are quality windows, not safety limits. A ten-year-old non-vintage bottle is still safe to drink. It just won’t taste like the bottle you bought.

Why a sealed bottle fades

Most of what people mean by “aged Champagne” happens before you ever see the bottle. The wine sits on its lees (the spent yeast from the second fermentation) in chalk cellars at a constant temperature, sometimes for years. Then it’s disgorged, corked and shipped ready to drink. From that point it isn’t improving in your closet. A little oxygen gets past the cork every month. The mousse thins, the green-apple and lemon notes turn toward baked apple and honey, and the color deepens from straw to gold.

Vintage bottles get a longer window because they’re built from a single strong year and usually rest longer on the lees. Prosecco gets the shortest: it’s made in steel tanks for freshness and has very little to fall back on once that freshness goes.

Storing an unopened bottle

The goal is somewhere around 45 to 55°F, dark, and the same temperature in July as in January. Swings do more damage than a spot that’s a few degrees warm. A basement shelf or the bottom of an interior closet works. Above the stove or on top of the fridge, where it’s warm and vibrates, is about the worst place in the house.

Keep it out of light, too. Sparkling wine is prone to light strike, a cooked-cabbage smell from UV hitting the wine, and it can set in within hours under fluorescent tubes or a sunny window. Clear and pale-green bottles are the most exposed. If a bottle came in a box or a tissue wrap, leave it on.

On its side or upright? For a few months it makes no difference, because the pressure inside keeps the cork damp. For years-long storage, lay it down. That’s how the producers keep their own stock.

The fridge is fine for a few weeks before a party. Leave a bottle in there for a year and the cork dries out and shrinks, and air follows.

Once it’s open

Get a clamping sparkling-wine stopper, the kind with two hinged arms that hook under the bottle’s lip. They cost a few dollars. With one, the bottle still has real fizz on day three; without one, it’s mostly gone by the next evening. Plastic wrap and a rubber band, or jamming the old cork back in, don’t hold the pressure.

Hanging a silver spoon in the neck does nothing. It’s been tested more than once, including by the Champagne trade itself, and the spoon bottle loses its fizz at the same rate as an open one. The cold of the fridge is what’s slowing things down.

How to tell Champagne has gone bad

Check the bottle first. A cork that’s pushed up, sticky residue around the foil, or a fill level that’s dropped well into the neck all mean air got in.

Then pour a glass. A faded bottle barely foams and the few bubbles die off in a minute. Hold it against something white: non-vintage Champagne should be pale straw, and deep gold or amber means it has oxidized. The nose tells you the rest. Fresh Champagne smells of lemon, green apple and toasted bread; an old one smells of sherry, walnuts and bruised apple, and a truly gone one smells of vinegar.

Wet cardboard or a damp basement smell is a different problem. That’s cork taint, it can hit a brand-new bottle, and a good shop will usually take it back.

Some people enjoy the honey-and-nut notes of an older bottle, and a mature vintage Champagne can be lovely. A standard bottle that’s been through five summers in a hall closet usually isn’t.

What to do with flat Champagne

Don’t pour it out. Tired Champagne is fine in a drink where something else supplies the flavor.

Orange juice doesn’t need bubbles, which is why the Mimosa is where most leftover bottles end up. Crème de cassis is sweet and dark enough to cover oxidized notes, so a Kir Royale made with day-four wine tastes close to a fresh one. The Champagne Cocktail (a bitters-soaked sugar cube under a pour of bubbly) was more or less designed for wine that isn’t the best in the house. And a French 75 gets most of its character from gin and lemon, so half-flat wine still works there. If you’d rather not drink it, cook with it: it deglazes a pan or makes a beurre blanc the same way any dry white does.

For more ideas, see our list of Champagne cocktails.

Frequently asked questions

Does unopened Champagne expire?

There’s no expiration date. There is a quality window: about 3 to 4 years for non-vintage and 5 to 10 for vintage, stored cool and dark. After that the bubbles, freshness and color fade.

How long does Champagne last after opening?

Three to five days in the fridge with a clamping stopper, and it’s best in the first two. Without a stopper it’s flat in about a day.

Can old Champagne make you sick?

No. The acidity and alcohol keep it safe. An over-the-hill bottle tastes flat and sherry-like, nothing worse.

Should Champagne be stored lying down or upright?

Either is fine for a few months. For years-long storage, lay it on its side so the cork stays moist.

Does prosecco last as long as Champagne?

No. Prosecco is made to drink young. Plan on 1 to 3 years unopened, compared with 3 to 4 for non-vintage Champagne. A Bellini is the best thing to do with an open one.

Still wines are a different story, covered in how long opened wine lasts. For the rest of the cabinet, from vermouth to whiskey, see how long alcohol lasts. And if you’ve got an open bottle and no plan, tell Cocktail Builder what else is on your shelf and it’ll find something to make.

Last modified on October 16, 2026