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How long can you keep an open bottle of vodka?

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Quick Answer

An open bottle of vodka can be kept for decades as it does not go bad. The vodka does get weaker over time. After a few decades, the proof may dip below 25 percent, which increases the possibility of bacteria and yeast developing in the bottle.

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How long can you keep an open bottle of vodka?
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Full Answer

Vodka loses its flavor very slowly, so it may taste bad after a decade. Vodka should always be sealed tightly with the original cap. It should be stored in a dark place and not exposed to extreme temperature changes. If the vodka develops an off odor, a strange flavor or a changed appearance, it should be thrown away.

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