My mom has had some red wine vinegar and white wine vinegar in her cabinet for a long time, but they have no listed expiration date and I couldn't find how to check online. Does anyone know?|||I don't think it does expire...
Wine vinegar is wine that has gone "bad" since it's turned into vinegar.
Also, the acidity in the vinegar inhibits any bacterial growth.
The only concern is flavors evaporating away, but if the container is capped, evaporation is kept to a minimum or non-existent.
From the vinegar website: http://www.versatilevinegar.org/faqs.htm鈥?/a>
How Long Does Vinegar Last?
The Vinegar Institute conducted studies to find out and confirmed that vinegar鈥檚 shelf life is almost indefinite. Because of its acid nature, vinegar is self-preserving and does not need refrigeration. White distilled vinegar will remain virtually unchanged over an extended period of time. And, while some changes can be observed in other types of vinegars, such as color changes or the development of a haze or sediment, this is only an aesthetic change. The product can still be used and enjoyed with confidence.|||They don't expire.|||Vinegar normally doesn't expire. Unless you see something "develop", such as a cloudy mass, it should last indefinitely.|||they are already expired that is why they are vinegar and not regular wine|||Vinegar is used to preserve things (like pickled onions) so I don't think it actually expires.
Also companies are so careful with expiry dates so that they don't get in trouble in food poisoning cases so I think that anything without one on is probably safe.
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