To people who say traditional cigs have Diacetyl and Acetyl Propionyl and asking why nobody get popcorn lung from cigs until now. The answer is so simple, when you smoke cigs, DA and AP gets burned about 1.000 celcius. At that high heat, DA and AP loses their harmfull chemical functions before they reach to lungs. But when these chemicals are in ecig, things are changed. There is no burn in ecig and their harmfull chemical functions stay un-damaged due to low heat which can cause popcorn lung in the future. Nobody knows if surely it can or not. But there are cases already recorded, there are people who get popcorn lung because of exposure to Diacetyl too much in the past, although they were eating diacetyl not vaping. I cannot guess what will happen if we continue to vape it into our lungs, as it causes a deadly lung sickness by eating it too much. I guess vaping it, will speed up the process.
One thing about vaping always scares me, when you vape food flavors they go into your lungs and goes into your blood stream in few seconds. But when you eat food flavors, they go into your digestive system and there it gets attacked by acids and enzymes which kills the harmfull chemical functions of food flavors before they go into blood stream. What I'm saying is, it is not only Diacetyl and AP, one flavor has at least 6 - 8 chemicals, nobody knows what will do other chemicals yet, we only know about Diacetyl and AP today.
Many flavor companies are already released their, v2 and DX version flavors. It is possible to make completely Diacetyl and Acetyl Propionyl free liquids today. A reputable liquid company should re-formule their liquids instead of showing 2014 self made lab tests and saying look our diacetyl and AP ratio is lower than cloud9 tests.
