>It would probably be safer to use a distilled vinegar as the distilled product does not contain the small amounts of undigestible cellulosic gums the bacteria in apple cider vinegar produce. Bees do not need the fiber in their diet.
I still do not understand why anyone would think it a good idea to add vinegar to sugar for winter feed. Do the bees have arthritis - cider vinegar is renowned for treating that!
Best wishes
Peter
52°14'44.44"N, 1°50'35"W
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