I cannot believe how simply obvious this was, but I have been using a turkey baster to draw samples out of my carboys (dj). Over a few years it must have gotten a terrible odor to it, much like vinegar. I suppose I could have been watching for this but it was not quite obvious. I had been rinsing with sulfite solution but apparently this was not enough for the rubber bulb. So I suppose I will need to invest in a proper wine thief. Just a small lesson learned.
Paul
Paul
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