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We had some fairly new white vinegar get cloudy white strands in it. Wasn't much left in the plastic gallon bottle so we tossed it. Only thing I can figure is that it was too close to the oven and may have caused this. What I don't understand is that when we use vinegar for canning, it gets heated up as well but never get's cloudy. Curious what could have caused this to happen.

  • Heat and plastic don't like each other. Even more so in sour environment. Have no idea if it might be the case here, but that would be my guess. – Mołot Sep 23 '15 at 11:38
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Mother of vinegar is a the bacteria acetobacter, which produces vinegar from wine, beer, or any other alcoholic source. In vinegar production, if the mother eats all the alcohol, it will then eat the vinegar and convert it into carbon dioxide. Vinegar mother will turn vinegar cloudy, and will form a film on the surface of the liquid. My guess is some acetobacter found its way in to your vinegar. It is harmless, but will lessen the strength of the vinegar over time. Vinegar mother also likes to live in warm places. It's best to store vinegar in a cooler place, like a pantry.

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