You find a bottle of brandy or cognac in the back of the cabinet, maybe a gift that’s been sitting untouched for years. Does brandy go bad?
The short answer: Unopened brandy and cognac have an indefinite shelf life. Hennessy’s own FAQ confirms that an old, untouched bottle will likely taste the same as the day it was bottled, as long as it’s been stored upright. Once opened, you’ll commonly see a 6 month to 2 year window cited for peak flavor, but that’s a conservative benchmark, not a decline point. What actually matters is how much air gets into the bottle and how well it’s sealed; a well-kept bottle can taste great for years past that window. It never becomes unsafe to drink either way.
For more shelf-life guides across the rest of your bar cart, check out our full Bar & Spirits Guide.
Key Takeaways
Unopened brandy or cognac: Indefinite shelf life. Hennessy’s guidance says a bottle stored properly for decades will taste essentially the same as the day it was bottled.
Opened: A 6 month to 2 year window is commonly cited for peak flavor, but that’s a benchmark, not a cutoff. Fill level and seal quality matter far more than the calendar.
Older cognac (VSOP, XO) has more to lose than younger VS. More time in oak means more delicate, complex compounds that fade faster once air gets into an opened bottle.
“Expired” brandy won’t make you sick. Its 35% to 60% alcohol content prevents bacterial or mold growth, so a bottle that’s lost quality is still safe to drink.
Sediment in older, aged brandy can be completely normal. It’s usually just tannin compounds settling out over time, not a sign of spoilage.
Cognac doesn’t improve in the bottle, even though it’s made from grapes. The aging that shapes its character happens entirely in oak barrels before bottling, the same as whiskey; it doesn’t continue like wine does.
Brandy vs. Cognac: Are They the Same Thing?
Not quite, and the distinction matters for how you read the rest of this article. Brandy is the broad category: any spirit made by distilling fermented fruit, usually grapes, though apple, pear, and other fruits work too. Anyone, anywhere, can legally call a grape-based distilled spirit “brandy” as long as it meets basic proof requirements.
Cognac is a specific, legally protected type of brandy. To use the name, a spirit has to be made from specific grape varieties grown in the Cognac region of France, double-distilled in copper pot stills, and aged at least two years in French oak. It’s the same relationship Champagne has to sparkling wine: every Cognac is a brandy, but most brandy isn’t Cognac. Armagnac (also French, from the Gascony region) and Calvados (French apple brandy from Normandy) are two other well-known, similarly protected styles. American and Spanish brandies, along with fruit brandies like eaux-de-vie, follow their own, generally less restrictive rules.
For shelf life purposes, none of this changes the fundamentals. Cognac, Armagnac, Cal
