not sure where to put this but since the knife is a tool for toking... so i have a hot knife that was used only once on some styrafoam and was wondering if i let it burn for like ten minutes to make sure all the junk was burned off, would it then be safe to use, its not dirty or anything like that... at least not visually
Yes it should be as safe as any other hot knife. Run a flame over it after soaping it up even. flame it though and you're set.