This may already be answered somewhere else, but I have searched the site for 2 hours and haven't really found an answer that covers my question. I have seen where it was discussed and the coa info was posted, but I was reading the MSDS sheet here "http://www.essentialdepot.com/msds/msds%20glycerin%20kosher%20food%20grade.pdf" under section 7 handling line 7, "Do not breath gases from burning as those gases are toxic". I have been using this for several weeks now with no problem and see where other members recommend it for use. But is it really safe to vape, is our vaping below the burning point, or should I be concerned?