Sorry folks - false alarm. Seems residual VG was the cause of the fog.
It odes vape ok, but next to no fog is produced, sadly.
Shows that juice is not easy to wash out at least.
Good for stealth vaping anyway. And makes me wonder how much I really need the fog effect.
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I just came across a post by Kate in August last year who tried vaping just a flavoring that was alcohol based (http://www.e-cigarette-forum.com/fo...e-glycerol-safety-discussion-3.html#post34221). Kate reported that some fog was produced which I was a little surprised by. Not very surprised as PG and VG are both types of alcohol, though longer chain. Surprised that an obviously safe base seems to have been rather overlooked.
So I tried it - and yes it does indeed produce fog, similar in volume and lastingness to PG. This despite the probably quite high percentage of water in this flavoring.
The juice I used was DrOetker/Supercook Lemon (mostly ethanol, some water and flavoring).
I did not find any overheating issue as mentioned by Kate; indeed, ethanol based juice would be expected to vaporise at a lower temperature. It might even be possible to run the atomizer at a lower power. At present, the ethanol-based juice tends to continue heating for a fraction of a second after power cut-off.
A potential downside though is that an ethanol-based juice can evaporate more readily at room temperature. I have been testing by dripping; not sure if an ethanol-based juice would be too thin to wick well from a cart; I haven't tried that yet.
I think this is definetely worth more investigaton. At the least, it suggests that we can increase the proportion of ethanol while reducing the proportion of PG and/or VG. At most, there might be a way here to avoid the decomposition of VG and the allergy issue of PG.
PG: C3H8O2 BP 188C
Ethanol C2H6O BP 78C
It odes vape ok, but next to no fog is produced, sadly.
Shows that juice is not easy to wash out at least.
Good for stealth vaping anyway. And makes me wonder how much I really need the fog effect.
--------------------------------------------------------------
I just came across a post by Kate in August last year who tried vaping just a flavoring that was alcohol based (http://www.e-cigarette-forum.com/fo...e-glycerol-safety-discussion-3.html#post34221). Kate reported that some fog was produced which I was a little surprised by. Not very surprised as PG and VG are both types of alcohol, though longer chain. Surprised that an obviously safe base seems to have been rather overlooked.
So I tried it - and yes it does indeed produce fog, similar in volume and lastingness to PG. This despite the probably quite high percentage of water in this flavoring.
The juice I used was DrOetker/Supercook Lemon (mostly ethanol, some water and flavoring).
I did not find any overheating issue as mentioned by Kate; indeed, ethanol based juice would be expected to vaporise at a lower temperature. It might even be possible to run the atomizer at a lower power. At present, the ethanol-based juice tends to continue heating for a fraction of a second after power cut-off.
A potential downside though is that an ethanol-based juice can evaporate more readily at room temperature. I have been testing by dripping; not sure if an ethanol-based juice would be too thin to wick well from a cart; I haven't tried that yet.
I think this is definetely worth more investigaton. At the least, it suggests that we can increase the proportion of ethanol while reducing the proportion of PG and/or VG. At most, there might be a way here to avoid the decomposition of VG and the allergy issue of PG.
PG: C3H8O2 BP 188C
Ethanol C2H6O BP 78C
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