Re: How Much Propylene Glycol
Well, the trick with bleach is to get rid of all of it, unless you want to smoke it. So, at a minimum, I'd put it in the hot sun for a long time.
However, if sterilization is your goal, I would think about using alcohol, which evaporates easier. You can get 90% isopropyl alcohol in the drug aisle for a couple of bucks.
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