I've read about that a bit. The only thing I wonder about is, while the juice makers themselves might not add diacetyl, do they know for sure if the flavorings they use for butter and cream don't have it? There was a really interesting article I read and I'll try to find it. Basically, they were finding trace amounts of diacetyl in the flavorings. Right or wrong it hasn't kept me from vaping cream flavored juice because the amounts were very trace.
