Question by Katira: When do red wine vinegar and white wine vinegar expire?
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 locate how to check online. Does any person know?

Best answer:

Answer by Dave C
I do not think it does expire…

Wine vinegar is wine that has gone “negative” because it is 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 minimal or non-existent.

From the vinegar web site: http://www.versatilevinegar.org/faqs.html
How Lengthy Does Vinegar Final?
The Vinegar Institute conducted studies to find out and confirmed that vinegar’s shelf life is almost indefinite. Due to the fact of its acid nature, vinegar is self-preserving and does not require refrigeration. White distilled vinegar will remain practically unchanged more than an extended period of time. And, while some changes can be observed in other kinds of vinegars, such as color modifications or the development of a haze or sediment, this is only an aesthetic alter. The item can still be utilised and enjoyed with confidence.

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