Idk what happened. I used it in another recipe for a friend and she said her’s was fine. The PG was used in other recipes and that was fine, too. Maybe something else in the BAN recipe went bad. It’s just a mystery to me. To answer your question, it was the recipe, not the concentrate. Wild guess but maybe there was some reaction with the tank I was using. Never heard of such a thing but Idk. Can’t remember what I had it in at the time. I always use SS decks. I’m befuddled.
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