Vegetable glycerine (glycerol) - safety discussion

[Kate]

Is that because it's a health scare?

In the long run we've debated the facts we have available and put our heads together and come up with mostly favourable opinions so far. All is not lost, except on people who don't read the whole thread.

[TheEmperorOfIceCream]

To be fair to Mihai, Bob, he did try to mitigate the alarmist nature of the opening post. And we got some good info out of it in the end. Unfortunately the title's glued on, and I suppose that would be a hit on a google search. I can see a situation where someone googles 'glycerine warning' and just draws a poor conclusion based on the number of returns.

Emp

[katink]

If the thread-starter approves, a mod can change that title... because yes, google hits are one of the worries with alarm-bells sounding in titles.

[jigtg]

dse801 penstyle peaked at 191C(10.3mV) + 26C(1.329mV) = 215C(11.612mV). This one has very sensitive sensor so I vaped as slow as I could. No cart. Thermocouple under steel wool. Atomizer coil resistance is 3.3 ohms. Li-ion rated 3.6(4.11V max. measured).
As the wire conducts heat, actual temperatures will be higher. How much, I don't know. What I can say is that actual temperatures can't be less than those stated.

[karenwest1961]

Well, VG has been a godsend during my flu-bug issues. Sore throat, chest congestion. I tried the nic gum while I've been sick, but I've missed my e-cigs.

So, made a mixture to use in my e-cig while I'm ailing. 1 part high jane juice, 3 parts 100% pure VG (edible). It actually helped sooth my throat and I got my vaping back while I recouperate. After the cold is gone, I may go with a 50/50 mix. I've noticed during my PG free/low PG days, my dry skin and red eyes have cleared up. I have been attributing that to perimenopause/menopause...but now, I'm wondering. Who knows. But it seems that cutting the pg stuff with some vg has had some great benefits for me. I've been using it in my month old 901 since I have back-up units...my atomizer hasn't clogged up. It's still kicking nicely. I'm going to enjoy that while I can.

[leaford]

Maybe I'm allergic to VG the way some are to PG, but I used a VG based "vapor enhancer" once, and couldn't stop coughing for several minutes after each hit. Never again.

[TropicalBob]

Next time you're at the drugstore, check the ingredients in the off-brand "healthy" mouth washes. I found several that were almost pure vegetable glycerine. I use it for at least 50% of all my mixes now. If it gets in your mouth, you go "yum" instead of "yuck."

[jigtg]

I dont see why would you want to add unknown substance to your e-liquid. Keep in mind that mouth washes weren't designed to be heated to 170C or whatever. I got a 500ml bottle of technical food grade VG at about 25euro..
Using it only on my mini. It is probably a good idea to store large quantities of VG in garage etc. in case of fire, BTW.

Since acrolein is highly irritant it might be possible to show that it is
impossible to get lethal amount of acrolein in vapor because you would be such a big pain. Just an idea, I dont have the time nor resources to even attempt proving this.

I'm not buying that 100-130C story. I heated very small drop e-liquid with a digital soldering iron to 130C and got no reaction whatsoever. At 170C it started to generate some vapor. I don't see how atomizer could make such a big difference all of the sudden.

[leaford]

Because the heating coil in an atomizer isn't immersed in liquid.

[jigtg]

I don't see how that could make a difference. My weller wsd 50(50 watts) can maintain that temperature. I can try heating a piece of ~0.2mm fiberglass and measure temperature on top but I don't think it would change anything. I can build a complete "atomizer simulator" if/when some of my atomizers die.

Just to be pedantic here, atomizer coil clearly can be wet of liquid so you would have to use that temperature to be clear on acrolein. Obviously it is possible to make such an atomizer but it will have bigger coil.