Cider vinegar questions here?
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  1. #1
    Join Date
    May 2014
    Goochland County, Virginia

    Default Cider vinegar questions here?

    I know that you guys want to PREVENT vinegar but I have a batch of cider destined for ACV.
    The cider batch is near dry.
    I'm getting a white/translucent mold on the surface.
    What should I do?
    Zone 7a

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  3. #2
    Join Date
    Oct 2004
    Lyons, CO

    Default Re: Cider vinegar questions here?


    Was this a naturally-fermented cider or a sanitized must with introduced yeast? Pellicles are common with "wild" ferments, and there's no real way to know if it's a good thing or not. Note that vinegar needs both acetobacter and oxygen: without oxygen it won't form acetic acid.
    Bees, brews and fun
    in Lyons, CO

  4. #3
    Join Date
    May 2012
    Knox, Pa. USA

    Default Re: Cider vinegar questions here?

    Boy Oh Boy, I can't help you there, I got a Vinegar culture in my winery years ago. It seemed to take forever to get rid of it. Every time I thought it was gone, it reared it's ugly head. Now I don't even let pickle eaters in the winery/meadery.

  5. #4
    Join Date
    Apr 2014
    Powhatan, Virginia, USA

    Default Re: Cider vinegar questions here?

    I can't offer anything about the surface film but the cider being dry should not be an issue. The bacteria convert the alcohol to acetic acid in the presence of oxygen. If you want to start or seed the culture try adding a splash of a good natural vinegar (like Braggs). It has the "mother" in it and will give you a reliable start.

  6. #5
    Join Date
    Feb 2011
    Decatur, GA

    Default Re: Cider vinegar questions here?

    Can you describe what you're seeing a little more? Mold is fuzzy, but vinegar pellicles do tend to be a whitish/translucent film that covers the surface. If it isn't fuzzy, you've likely got a spontaneous vinegar culture growing. Like others have said, it needs oxygen, so cover the container with something breathable. A kitchen towel, coffee filter, even a paper towel with a rubber band over it will do to keep flies out and let oxygen in.

    If it is fuzzy, it's not a keeper. Sorry.


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