How to Tell If Wine Has Gone Bad: 5 Signs to Check

Thu, 30 Jul 2026 00:00:00 +0000

Every wine drinker eventually faces the suspicious bottle: the white that has been open a week, the red from the back of the cupboard, the gift that spent a summer in a hot car. Is it still fine? The good news is that wine tells on itself quickly, and you need nothing but your senses to catch it.

First, the Reassuring Part

Bad wine is not dangerous wine. Alcohol and acidity make wine hostile territory for harmful bacteria, so a spoiled bottle will insult your palate, never your health. The worst outcome of a sip of vinegary Merlot is a grimace. That should make you braver about the sniff test, which is where every check begins.

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How to Tell If Wine Has Gone Bad: 5 Signs to Check

First, the Reassuring Part