How Long Does Seltzer Last Once Opened?


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2-4 days


Shelf Life Tips

  • How long does seltzer last once opened? The precise answer depends to a large extent on storage conditions — keep opened seltzer refrigerated and tightly closed.
  • How long does seltzer last in the refrigerator once opened? Seltzer that has been continuously refrigerated will keep at best quality for about 2 to 4 days after opening.
  • Is opened seltzer safe to drink after the "expiration" date on the bottle? Yes, provided it is properly stored and the bottle is undamaged - commercially packaged seltzer 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 seltzer will remain at peak quality.
  • How can you tell if opened seltzer is bad or spoiled? After opening, commercially manufactured seltzer will start to become flat and lose flavor; if the seltzer develops an off odor, flavor or appearance it should be discarded.
  • Discard all seltzer from cans or bottles that are leaking, rusting, bulging or severely dented.

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