New studies find carcinogens in vg and pg at high temps, even in tootle puffers

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Lessifer

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To be honest, all I can do is measure what I can, and make judgement calls from there. If I see the wick temp is close to the coil temp it will be good enough "for me" to trust my dna settings, and to keep my temps low "just in case".
What we need is a physicist to explain exactly what is happening inside an atomizer. We're all just kind of guessing, which is fine, for making personal decisions. It would be great to know exactly how our vapor is being produced.
 

zoiDman

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Of course, more information is always good, but even if we stipulate that a dna board is 100% accurate and what it tells us is a 500F coil really is a 500F coil, that still doesn't answer the question of whether or not the liquid itself is being superheated beyond its boiling point.

No... It Doesn't. But isn't Sticking a Thermocouple into a Wick something that has Merit?

And probably something that Should have been Done a Long Time Ago?
 

Stinknugget

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Other things found to contain carcinogens:

Coffee
Bacon
Non organic produce
Milk
Toothpaste
Granite
And everything here:http://wp.me/pvn8r-9a

I am all for risk mitigation but your only on this rock for 80 or so years. Anyone reading this is experiencing the only life they will ever have. Do what makes YOU happy.

Never let miserable people influence your happiness.

Besides, I don't like people without vices. They scare me.
 

mikepetro

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What we need is a physicist to explain exactly what is happening inside an atomizer. We're all just kind of guessing, which is fine, for making personal decisions. It would be great to know exactly how our vapor is being produced.
Funny thing is that I bet it has already been done. But who knows who to trust. Most folks here wont trust anything unless it comes from known pro-vaping guy, and known pro-vaping guys arent trusted by the public at large.
 

mikepetro

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No... It Doesn't. But isn't Sticking a Thermocouple into a Wick something that has Merit?

And probably something that Should have been Done a Long Time Ago?
I would wager money that its been done. Results were probably seen as "proprietary" and never released.
 

zoiDman

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To be honest, all I can do is measure what I can, and make judgement calls from there. If I see the wick temp is close to the coil temp it will be good enough "for me" to trust my DNA settings, and to keep my temps low "just in case".

Bingo.

And the More Measurements that can be Made would seem to lead to More Informed Judgment calls.

An Inherent Weakness some times is looking at a Complex System and trying fit a Single Cause n' Effect Scenario for the Entire System. In the Real World, things are Rarely that Simple.

Just take the Coil/Wicks we use. Is the Heating of the coil completely Uniform at All Points on a Coil? Or can some Points on the Coil be "Hotter/Cooler than other points?

And if so, How Much?

Doing Physical Measurements can yield Insight to something like this.
 

KenD

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Ahh, yes, the good ol' daze. That's way back when eliquid vendors were catering to the smoker (vaper to be) rather than the vaper.

I wouldn't be that categorical. I know way more people quitting today than four years ago when I started vaping, and that's with the liquids available today. It would be difficult to argue that the equipment back then was better, and the liquids available today is suited for today's equipment. Clearly it works for many. We shouldn't be tricked into thinking that "back then" was the better or "more correct" simply because we stick to what we got used to.

Sent from my K6000 Pro using Tapatalk
 

zoiDman

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I would wager money that its been done. Results were probably seen as "proprietary" and never released.

Yeah... I should have been More Specific and included the something like "Published Results".

Just from a Legal CYA aspect, I Couldn't Imagine that the Major OEM's haven't done Independent Tasting of what their Atomizer actual Do.
 

KenD

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Well has Dr farsalinos commented yet he did a study on this ages ago and found that the temperature we vape at was safe so what has changed.
He didn't do that kind of study, not to my recollection at least. He (correctly) commented on the errors in a previous study. In any case, he certainly hasn't done a study taking into account "the temperatures we vape at" (a huge variance there, I'm sure). Including the studies discussed here, there isn't really any reliable info on the temperatures we vape at, as in what temperature the liquids are heated to.

Sent from my K6000 Pro using Tapatalk
 
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happy valley

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What we need is a physicist to explain exactly what is happening inside an atomizer. We're all just kind of guessing, which is fine, for making personal decisions. It would be great to know exactly how our vapor is being produced.

Good question, a very basic one, and when you think about it, isn't it kinda surprising there isn't a well known answer among vapers?
 
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KenD

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No... It Doesn't. But isn't Sticking a Thermocouple into a Wick something that has Merit?

And probably something that Should have been Done a Long Time Ago?
If my memory doesn't fail me completely several reviewers, Phil Busardo being one, did do something of the sort back when tc was introduced.

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KenD

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Other things found to contain carcinogens:

Coffee
Bacon
Non organic produce
Milk
Toothpaste
Granite
And everything here:http://wp.me/pvn8r-9a

I am all for risk mitigation but your only on this rock for 80 or so years. Anyone reading this is experiencing the only life they will ever have. Do what makes YOU happy.

Never let miserable people influence your happiness.

Besides, I don't like people without vices. They scare me.
But the same could be, and has been, said about smoking as well.

Sent from my K6000 Pro using Tapatalk
 

Lessifer

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Funny thing is that I bet it has already been done. But who knows who to trust. Most folks here wont trust anything unless it comes from known pro-vaping guy, and known pro-vaping guys arent trusted by the public at large.
Who performs a study does, unfortunately, play a part in how it is perceived. I try not to dismiss things out of hand though, even if they are negative. I like to take data for what it is, and if a conclusion can be corroborated by another study, that's even better. It appears that studies are rarely recreated now, which is a shame.

My wishlist for this topic:
1. Someone to figure out the temperatures the liquids we vape are reaching in an atomizer. Doesn't even need to be broad, just need a reference point.
2. The coil temperature found in #1.
3. The coil temperature when carbonyls are first detected in an atomizer.

That, of course, would't be a complete picture, but it would be more complete than what we have now.
 

englishmick

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Funny thing is that I bet it has already been done. But who knows who to trust. Most folks here wont trust anything unless it comes from known pro-vaping guy, and known pro-vaping guys arent trusted by the public at large.

I bet there has been quite a lot of research carried out by manufacturers. Evolv must have done some when they were developing their boards, and other board makers and tank makers. But that would never see the light of day for obvious reasons.
 
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USMCotaku

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What we need is a physicist to explain exactly what is happening inside an atomizer. We're all just kind of guessing, which is fine, for making personal decisions. It would be great to know exactly how our vapor is being produced.
I know that in an open environment, liquids don't go beyond the temp required to form steam...just more steam is created faster (like a fire hose on the base of a large fire for example...the only example I know, since that was my job). Perhaps this is why sub ohm set ups are preferable? Much more air, making it closer to an open environment, where the escaping vapor isn't trapped and heating further?
 

mikepetro

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Who performs a study does, unfortunately, play a part in how it is perceived. I try not to dismiss things out of hand though, even if they are negative. I like to take data for what it is, and if a conclusion can be corroborated by another study, that's even better. It appears that studies are rarely recreated now, which is a shame.

My wishlist for this topic:
1. Someone to figure out the temperatures the liquids we vape are reaching in an atomizer. Doesn't even need to be broad, just need a reference point.
2. The coil temperature found in #1.
3. The coil temperature when carbonyls are first detected in an atomizer.

That, of course, would't be a complete picture, but it would be more complete than what we have now.

There you get into all of those "device specific" variables. Thats the downside of open systems, it is hard to profile anything. I will attempt to do #1 and #2, but it will only be valid for my setup, it could be totally different for your mod/atty/coil/juice/settings/airdraw etc.
 
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