Is there a difference in pg/ vg quality?

[Alien Traveler]

I'm guessing, but if one could taste a difference in a blind test between two USP's, I would probably be wary of one of them.

I am not so sure.
USP is not the highest grade of purity, it is of sufficient purity for pharma applications. In my (not blind) testing USP alcohol was worse than cheap vodka.
But I tasted two or three VG from different suppliers, and there were no difference for me. Some controversy here... First I said you may be wrong, than I said you are probably right...

 

[Ethan diy]

Question..So basically the vg pg used for vaping is best if it was pharmaceutical grade ... or is food grade sufficient?

 

[stols001]

You really want to go with pharma grade if you can get it. I don't think food grade really cuts it for these, provided you can get pharma grade easily.... I mean, this is going into your lungs, you really want it as pure as you can get it.

Anna

 

[Ethan diy]

Right gotcha thanks anna

 

[Katya]

Question..So basically the vg pg used for vaping is best if it was pharmaceutical grade ...

Yes.

or is food grade sufficient?

No!

 

[BrotherBob]

Question..So basically the vg pg used for vaping is best if it was pharmaceutical grade ... or is food grade sufficient?

If you mean highly refined/purified, no.
Could check American Chemical Society (ACS) standards. I believe chemical grade meets or exceeds ACS standards.
If you mean USP is the best because it is generally accepted as cost effective and refined/purified for vaping, Yes.

 

[IDJoel]

The bottom line for me (buying in the USA) is: if it doesn't say USP on the bottle label (of PG, or VG), I won't vape it. Simple enough for me...

 

[Ethan diy]

Right... just found a place here in Il thst selks usp thanks all... problem is im stuck with three litres foid grade stuff... oh well ill see if he'll take it back..thanks ..

 

[Ethan diy]

Hey good news... i was just told that what i bought is usp grade!! .. thanks all for support

 

[Alien Traveler]

Hey good news... i was just told that what i bought is usp grade!! .. thanks all for support

It should be written on label - "USP". Try to find it. If not...
Some vendors put "food grade" and "USP" grade on a label simultaneously, like here:
https://www.amazon.com/Vegetable-Gl...ZnRe2K3L&preST=_SY300_QL70_&dpSrc=detail&th=1

 

[Ethan diy]

Yup i just found out that the stuff i was buying is usp grade i had to get the suppliers name out of the vendor and their lab said it was usp.
Greatful to God.
Thx all.

 

[stols001]

Glad you are finding materials you can successfully DIY with Ethan. Best of luck and hope things go well for you moving forward.

Anna

 

[Ethan diy]

Thank you so much anna for all your help and support.. i hope all goes well for you too.!

 

[mhertz]

...and the nicotine that goes into e-cig products is ..?

Typically not USP

Sorry, but yes it is USP... Non-USP nic is also under 99% before cut.

The completed base isn't USP, as no USP article to comply against for such exist, but the base is constructed of USP-complaint base-materials blended together to a new product.

 

[AzPlumber]

Sorry, but yes it is USP... Non-USP nic is also under 99% before cut.

The completed base isn't USP, as no USP article to comply against for such exist, but the base is constructed of USP-complaint base-materials blended together to a new product.

So you agree, the nicotine that goes into electronic cigarettes is not USP because diluted nicotine in PG or VG is not USP. I don't believe anyone is mixing USP (+99%) nicotine into E-liquid.

 

[Str8vision]

Hi all
i was wondering if anyone knows if there is a substantial difference in vg or pg i.e. quality or composition etc.. or is it all thd same no matter where one gets it?
Would highly appreciate knowledge on this subject thanks

I make and vape NETs exclusively, I've been buying/using USP grade PG, VG and liquid nic since 2012. Late in 2013, just before finding/joining ECF, I had a bad experience with an off-brand PG purchased from a seller on Amazon. While it was sold as and labeled USP grade it most certainly wasn't. A few months after the purchase it began developing an Acetone smell and taste, I ended up flushing it and all the NET that had been made using it. Fortunately, since I age NETs for several months before vaping them, I didn't vape any of this PG but I lost several liters of NET. This was a wake-up call for me. From that point on I've only purchased USP PG and VG from "Bulk Apothecary" or "Essential Depot", I trust the big companies and haven't been disappointed since. Anyone can print a label and there's no shortage of unscrupulous vendors/individuals in the on-line marketplace, just look at all the counterfeit batteries floating around. When it comes to something I'll be inhaling, I want the best and need to have absolute confidence I'm receiving the quality/purity I paid for. YMMV

 

[mhertz]

So you agree, the nicotine that goes into electronic cigarettes is not USP because diluted nicotine in PG or VG is not USP. I don't believe anyone is mixing USP (+99%) nicotine into E-liquid.

I agree that nicbases isn't USP(as isn't possible), but is using USP nic to make said base, as can be seen by the many vendors which lists COAs for there base-components.

Think nicotine-river and vaperstek etc, using alchem and chemnovatic USP nic. Also, for eliquid, I believe nicselect is very wide-ly used...

 

[Str8vision]

I agree that nicbases isn't USP(as isn't possible), but is using USP nic to make said base, as can be seen by the many vendors which lists COAs for there base-components.

Think nicotine-river and vaperstek etc, using alchem and chemnovatic USP nic. Also, for eliquid, I believe nicselect is very wide-ly used...

Yup. Best we can do is ensure all the ingredients used to make the base "were" USP grade, once diluted the resulting base doesn't actually carry a USP designation. I can live with that as long as a "reputable/competent" company does the mixing/dilution/bottling.

 

[Ethan diy]

I make and vape NETs exclusively, I've been buying/using USP grade PG, VG and liquid nic since 2012. Late in 2013, just before finding/joining ECF, I had a bad experience with an off-brand PG purchased from a seller on Amazon. While it was sold as and labeled USP grade it most certainly wasn't. A few months after the purchase it began developing an Acetone smell and taste, I ended up flushing it and all the NET that had been made using it. Fortunately, since I age NETs for several months before vaping them, I didn't vape any of this PG but I lost several liters of NET. This was a wake-up call for me. From that point on I've only purchased USP PG and VG from "Bulk Apothecary" or "Essential Depot", I trust the big companies and haven't been disappointed since. Anyone can print a label and there's no shortage of unscrupulous vendors/individuals in the on-line marketplace, just look at all the counterfeit batteries floating around. When it comes to something I'll be inhaling, I want the best and need to have absolute confidence I'm receiving the quality/purity I paid for. YMMV

Wow that toughs it up for me cause i really wouldnt know whom to trust since im not in the us... there is a pharmaceutical manufacturer of pg vg here thats reputable but the price would be substantially higher and if where i get my pg vg now are telling the truth re. Usp i cant know for sure, however i will interrogate it further.. anyway whatever needs be for me to make sure i inhale the right sh.. will be done.. either way itll cost a hell of alot less than the average 30ml bottle of ejuice sold at an average vendor here for about 15$ ....
This is great to know all this....
Grateful for the forum.