Not to open a can of worms, or to assault those who prefer not to think about, but I have the need to share my opinion with y'all. I posted it on my FB page as follows:
During all my years of smoking I was not interested in knowing what it was about commercial cigarettes that was killing me, but now that my health has improved thanks to vaping, I sure want to avoid those flavorings which contain either diacetyl or acetylpropionyl. Acetylpropionyl is also known as acetyl propionyl, 2,3-pentanedione, or simply AP.
Diacetyl and AP are generally found in buttery-type flavorings, and there is no doubt that they have caused a fatal condition known as popcorn lung in an alarmingly high number of people who work in the flavoring industry, popcorn-making industry and coffee-roasting industry.
Kudos to a company called Vaporshark, which has paid to test and HAS PUBLISHED THE TEST RESULTS for every single one of the 200+ different e-liquids that they sell. This self-policing has aroused the ire of some flavor manufacturers, and has caused some others to outright lie about using ingredients that contain diacetly or AP.
A frightening number of the e-liquids contain frighteningly high amounts of these two undesirable chemicals.
It's my understanding that it cost about $100 for each of the e-liquids to be tested, meaning that Vaporshark invested approximately $20K to have the testing done. Thank you, Vaporshark!
Armed with the facts, I can avoid using any flavorings that contains diacetyl or AP.
http://www.scribd.com/…/2689749…/VaporShark-E-Liquid-Testing