Alcohol Shelf Life: Which Bottles Go Bad, and How Fast

Booze attracts misinformation the way a spilled drink attracts fruit flies. Does sticking to one type of liquor really prevent a hangover? Not necessarily. Does mixing an energy drink with alcohol make you more drunk? Again, that’s a no. And there’s just as much confusion over the proper way to store your spirits and how long each of them lasts.

Turns out, despite the notion that alcohol gets better with age, most liquors will go bad after a period of time. Some may simply develop an “off” taste, while others could legitimately make you sick. So which bottles will outlast you, and which are quietly turning while they sit in the cabinet? This guide goes type by type, opened and unopened, with the storage tricks that buy you more time.

Alcohol shelf life at a glance

Bottle by bottle

Same question, by the bottles people actually ask about, with a link to the full write-up on each.

How long do spirits (hard liquor) last?

Hard liquor is the easiest category to keep, although that doesn’t mean its quality lasts forever. Unopened and stored well, a bottle of vodka, gin, rum, whiskey, or brandy keeps more or less indefinitely. Once opened, most producers suggest finishing the bottle within one to two years for peak flavor, though plenty still taste fine a decade after the first pour. Rum is the textbook case: rounder and duller after a year or two open, never unsafe.

Three factors determine how fast an open bottle declines: temperature, light, and air.

• Temperature. Spirits should be stored in a cool, even place. (Wondering about the freezer? Fine for vodka, a waste for whiskey.) Flavor researchers at Bacardi found that temperature fluctuations break down an organic molecule known as terpene, which alters the flavor of the alcohol. Since that discovery, Bacardi began shipping bottles in coolers or even wrapped in blankets to avoid temperature swings.
• Light. Sunlight, in just 10 days, has been shown to reduce the color of a dark spirit by anywhere between 10 and 40 percent. That hue is indicative of the production process and eventual flavor, so changes in color ultimately mean changes in taste. Light also speeds up evaporation.
• Air. Air exposure leads to oxidation and the slow diminishment of flavor. The more empty space in an open bottle, the more oxidation happens. If a bottle is running low, transfer the remainder to a smaller container so there’s less room for oxygen to react with the spirit.

The one big exception: tequila

The agave compounds that give tequila its flavor are fragile. Once opened, a bottle may lose its original properties within just three months, sometimes by up to 50 percent. Blanco fades fastest; reposado and añejo pick up sturdier oak notes in the barrel and hold up better. Unopened tequila keeps indefinitely, but once it’s open, drink it sooner rather than later, and decant the last third into a smaller bottle to cut the headspace.

How long do liqueurs last?

Most liqueurs keep at room temperature for a very long time, as long as they’re around 20 percent alcohol or higher. The more alcohol they contain, the longer the shelf life: Grand Marnier holds for years and a half-empty Jägermeister is still itself after three to five. The delicate, lower-proof bottles fade. Campari gives you about a year of full bitterness, and St-Germain loses its elderflower top notes within six months at room temperature, twice that in the fridge. There’s a liqueur-by-liqueur table here.

The big exception is cream-based liqueurs (think Baileys). Because cream eventually spoils, these need refrigerating after opening and usually last only 18 to 24 months; we cover the date stamps and spoilage signs in does Baileys go bad. An easy rule: read the label. Most cream liqueurs print a best-by date and tell you whether they need the fridge. If the color, texture, or smell seems off, throw it out to avoid getting sick.

One more tip: the high sugar content in liqueurs can draw fruit flies and cause a tight seal to form beneath the cap. Wiping down the neck of the bottle after each use prevents both.

How long do beer, wine, and Champagne last?

Beer and wine are easily affected by heat and light, and should be kept in a cool, dark place. Beer can be stored for roughly a few months; once opened, its carbonation goes flat quickly. It’s ideal to finish a beer in the sitting you open it, but with proper covering an open beer may stay fresh for up to three days in the fridge. That stamped date is softer than it looks, by the way — here’s what actually happens when you drink expired beer.

Wine tends to be best within a year to a year-and-a-half of purchase. You won’t get sick drinking an “off” wine, but one that’s been open a while turns vinegary, so finish an opened bottle within three to five days (a bottle-by-bottle breakdown here). The exception is boxed wine: the bag collapses as you pour, so no air reaches what’s left, and many boxes stay drinkable for up to six weeks.

Champagne, like beer, loses its bubbles once it meets air. If you don’t plan to finish the bottle the day it’s opened, drink it within 24 hours, or cap it with a sparkling-wine stopper to stretch that to a day or three. (Saving a special bottle for someday? Read how long unopened Champagne really keeps first.)

How long does fortified wine last?

Fortified wines (port, sherry, madeira, marsala, and yes, vermouth) sit between wine and liquor. They oxidize like wine, so refrigerate them once uncorked. They outlast a standard Cabernet, but they still start to fade after a few months, six at the most. Vermouth is the worst offender: dry goes flat in about a month, sweet in two, which is exactly why so many home Martinis taste tired. Buy the 375mL bottles when you can.

How to tell if alcohol has gone bad

• Spirits: a noticeably duller color, a flat or “off” nose, and a weaker taste. Rarely unsafe, just less enjoyable.
• Cream liqueurs: curdling, clumps, a sour smell, or a swollen bottle. Toss it.
• Wine: a vinegary or nail-polish-remover smell, or browning in a once-bright white. Not dangerous, just unpleasant.
• Beer: flat, skunky, or sour where it shouldn’t be.

When in doubt with anything cream- or juice-based, throw it out.

Frequently asked questions

Does alcohol expire?

Unopened high-proof spirits (vodka, gin, rum, whiskey) never really expire. Lower-proof and perishable bottles do: cream liqueurs spoil in 18–24 months, opened wine lasts days, and opened tequila fades within months.

Does Grand Marnier go bad?

Grand Marnier is a high-ABV orange liqueur, so an unopened bottle keeps indefinitely and an opened one stays good for several years at room temperature. Quality slowly declines after opening, but it won’t spoil the way a cream liqueur does.

Does Baileys go bad, and does it need to be refrigerated?

Yes. Baileys and other cream liqueurs spoil because they contain real cream. Check the best-by date (usually about two years), refrigerate after opening, and use within 18–24 months. Curdling, a sour smell, or clumps mean it’s done.

How long does an opened bottle of liquor last?

For best flavor, finish opened spirits within one to two years. They’re safe well beyond that, but oxidation, light, and temperature swings gradually dull the taste.

Does tequila expire once opened?

Tequila keeps indefinitely unopened, but the fragile agave flavor degrades fast once the bottle is open, and it can lose up to half its character within three months. Drink opened tequila sooner rather than later.

Does vermouth go bad?

Yes. Vermouth is a fortified wine, so treat it like wine, not liquor. Refrigerate after opening and use it within about a month before it turns flat and stale. This is why so many home Martinis and Manhattans taste “off.”

Can drinking old alcohol make you sick?

Old high-proof spirits won’t make you sick. They just taste worse. The real risk is perishable bottles: spoiled cream liqueurs and badly oxidized wine. If it smells or looks wrong, don’t drink it.

Does rum go bad?

No. Unopened rum keeps indefinitely, and an opened bottle takes a year or two before the fruitier notes start to fade. Flavored and coconut rums, which sit at lower proof with added sugar, dull sooner. Nothing about old rum is unsafe.

Do bitters expire?

Effectively never. Most cocktail bitters are 35 to 45 percent alcohol and used a dash at a time, so a decade-old bottle of Angostura is still fine. The aroma mellows a little and the level drops through evaporation, but nothing harmful happens.

Store everything halfway sensibly and most of your bar will be good whenever you are. Next time you’re standing in front of those bottles with no idea what to pour, Cocktail Builder will build a drink from whatever you’ve actually got.

Last modified on September 3, 2026