Thread: Mildew smell in brushes

I haven't had that happen, and I don't wash my brushes, but I have seen tutorials that suggest Dawn dish soap or borax IIRC. I would wash it out, shake it out, air dry as you've been doing. I've only heard of that sort of thing if it is put away wet in a cabinet or something like that. I don't understand how it could happen in an open air environment.