Just got a 510.

[Silence]

PG is Propylene Glycol. It is made from animal proteins. VG is just made from vegetables. VG is a bit thicker and will produce more vapor. PG is sweeter.

[Scottbee]

PG is Propylene Glycol. It is made from animal proteins.

I don't believe that is correct. It is my understanding that the process is:

Propene (propylene) - > Propylene Oxide -> Propylene Glycol

You may be thinking of non-vegetable glycerol

[Silence]

Yes, I misspoke. Thanks for the correction, PG is made synthetically while Glycerol, should be equally safe, is made from animal protein, Pig specifically i think.

[evil1rox]

Yes, I misspoke. Thanks for the correction, PG is made synthetically while Glycerol, should be equally safe, is made from animal protein, Pig specifically i think.

mmm Pig vapors....

E

[Kent C]

Just to clarify:

VG = Vegetable Glycerin = Glycerin = Glycerol

It can be made from vegetable or animal fat.

The "Now" brand of VG is made from vegetables only.