Would the absence of PG/VG make for an invisible vape?

[dc32]

For example, if there was an E-liquid that didn't contain those chemicals, would it just vape invisible as in you'd still get the taste and the affects but just wouldn't SEE the vapor?

I'm just thinking for airplanes and work that invisible vaping might be convenient

[ZambucaLu]

PG/VG give the juice some thickness. Without it, the liquid would most lkely be too thin. And if there's too much water, you will get steam, not vapor.

Lu

[Cymri]

this is an interesting question. I have wondered to what extent the PG is actually necessary in carrying the nicotine/eliquid along with it or if it is simply there for the smoke effect. My intuition is that PG does have alot to do with carrying the nicotine along.

However there certainly are vaporizers out there that don't use PG but instead operate at a temperature dialed in by the user to match the evaporation temperature of the constituent they want to vaporize. It would be interesting to try out a vaporizer like that with a PG free nictotine solution to see how it would work it out. It appeals to me since I am uncertain of the health effects of PG. Whether or not there would be a visible vapor doing it like that would be interesting to find out.

[DCrist721]

I posted a thread asking about this a few weeks ago, although it kind of turned into a debate about holding in your vapor, which my friend who's a doctor scared the **** out of me about.

http://www.e-cigarette-forum.com/for...-e-liquid.html

I think it was determined that the problem would be in finding a replacement for the PG. Because if you just take out the PG then you have concentrated nicotine, so unless your e-cig was modified to only allow very small draws, this would be a potentially dangerous thing. Water would ruin the atomizer apparently, and it doesn't seem to vaporize that easily, because I once used an atomizer that I had just washed without giving it enough time to dry, and it kept the atomizer too cool to vaporize the e-liquid.

[Jaaxx]

The PG acts as a vehicle for the nic/flavor. Without it you'll get steam if you're lucky. Most atomizers wont get hot enough to produce steam, especially when they are being cooled by water.

[Cymri]

I did some quick figuring - googling 'number of drops in a ml' it seems there about 20 drops per ml. So for my 36 mg Riskee Yuice that should mean there is 1.8 mg nicotine per drop which would be slightly hgher than what is typically thought to be absorbed from smoking a cigarette. Looking at it that way there isn't really so much liquid there to begin with. I have my doubts that I am actually getting that much nicotine per drop though.

What you see with PG vapor isn't actually so much the PG but actually water vapor that has been condensed onto the hydrophilic (meaning "water loving") PG droplets. It's really basically just like a cloud. Google fog machines to find more on this.