What stinks?!!!

It works that way with flooded out shoes and wet carpets too. Once you have the mold in them, every time they get wet I think the mold spores bloom again or whatever. I don't think there's a way to kill that stuff off permanently. You might yet 99.9% out, but there will be some left over no matter what. You can kill it until they get wet again, but if the sour smell is already in the towels after washing, you might try a fungicide, bleach, vinegar or whatever. But I bet it comes back.

TPS