Shelf Life Tips
- How long does tonic water last once opened? The precise answer depends to a large extent on storage conditions — keep opened tonic water refrigerated and tightly closed.
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How long does tonic water last in the refrigerator once opened? Tonic water that has been continuously refrigerated will keep at best quality for about 2 to 4 days after opening.
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Is opened tonic water safe to drink after the "expiration" date on the bottle? Yes, provided it is properly stored and the bottle is undamaged - commercially packaged tonic water will typically carry a " Best By," "Best if Used By," "Best Before", or "Best When Used By" date but this is not a safety date, it is the manufacturer's estimate of how long the tonic water will remain at peak quality.
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How can you tell if opened tonic water is bad or spoiled? After opening, commercially manufactured tonic water will start to become flat and lose flavor; if the tonic water develops an off odor, flavor or appearance it should be discarded.
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Discard all tonic water from cans or bottles that are leaking, rusting, bulging or severely dented.
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