Steam Engine VG/PG Ratios

[Leni]

Take 1.2 ml out of the VG nic quantity (which is the amount of nicotine contained in the 7.2%) and ignore it ... then it works out 50/50. That’s my assumption anyway

If your nic is in VG, that should only affect how much extra VG you add. It shouldn't have any effect on what should be 50ml of PG in a 100ml 50/50 mix. I'm confused, but then I'm confused by a lot of things ....

 

[zouzounaki]

Have a look at the totals, although it says 100ml it only adds up to 99.4.

 

[Sprite71]

I’m getting lost again. It does make 100ml of eliquid?

In that 16.67 ml of VG nic there is 1.2ml of pure nic (so is not counted in the PG or VG totals)

so that gives me 15.47 VG (from nic) + 33.93 = 49.4

so it’s a mix of 49.4/49.4

 

[Sprite71]

Have a look at the totals, although it says 100ml it only adds up to 99.4.

I keep getting it to 100

 

[Leni]

Have a look at the totals, although it says 100ml it only adds up to 99.4.

I've just added them up, and on my calculator they make 100ml.

In that 16.67 ml of VG nic there is 1.2ml of pure nic (so is not counted in the PG or VG totals)

so that gives me 15.47 VG (from nic) + 33.93 = 49.4

so it’s a mix of 49.4/49.4

I've always mixed with my nic as a percentage of my total PG (my nic is in PG) I've never come across a method where 'pure nic' is extracted from the total, AFAIK your pure nic is part of the 16.67 ml.

Using the POTV calculator for a 50/50 flavourless 12mg mix you get:

VG Nic - 16.67ml
VG - 33.33ml
PG - 50ml

 

[zouzounaki]

Ha ha aye you are right. Just ignore my posts...

 

[Sprite71]

Using the POTV calculator for a 50/50 flavourless 12mg mix you get:

VG Nic - 16.67ml
VG - 33.33ml
PG - 50ml

To be honest that is what I was expecting to see!! I’ve just been trying to make sense of what steam engine is telling me (why I didn’t think putting 72% nic in accidentally would throw everything off like it did)

 

[Leni]

To be honest that is what I was expecting to see!! I’ve just been trying to make sense of what steam engine is telling me (why I didn’t think putting 72% nic in accidentally would throw everything off like it did)

It didn't throw everything off - both times you got 16.67 ml of nic to add, which is right for the mix you want to make: putting 72 or 7.2 in hasn't made the difference. It has calculated the VG/PG ratios wrong both times though, for no reason that I can see, it's weird

I can only suggest using the POTV calculator, cos there's something a bit odd going on there

 

[Sprite71]

It didn't throw everything off - both times you got 16.67 ml of nic to add, which is right for the mix you want to make: putting 72 or 7.2 in hasn't made the difference. It has calculated the VG/PG ratios wrong both times though, for no reason that I can see, it's weird

I can only suggest using the POTV calculator, cos there's something a bit odd going on there

Yes, the nic quantity was right (which is why I didn’t question the rest of the quantities, at the time - also wasn’t doing unflavoured). Putting the correct nic strength 7.2% makes marginal difference to the 50m PG I expected. I just thought this must be how it’s meant to be. First attempt (other than short fills) so I’m pretty clueless

 

[zouzounaki]

So it seems to be compensating for the amount of nic? That’s very precise.