I'm a little bit special / mix ratio

[raid2506]

Can somebody help me with the maths involved with this mix please?

I have 10ml @ 20mg of homebrew 70/30 vanilla flavour mixed.
3.7ml PG @ 54mg
2.8ml PG
2.5ml VG
1.0ml Vanilla flavour

I want 20ml @ 20mg homebrew 50/50 vanilla flavour.

Now I know I could just start from scratch but that would be far too simple and also waste the mix I already made.

Maybe it is simple, I am usually pretty good with numbers but I have a headache and I'm not in the mood

It seems logical to just make 10ml @ 20mg of 30/70 and combine the two mixes? But something is bugging me about that.

I have looked at several calculators and not found one that can incorporate my original mix into a new mix.

So if you KNOW how I do this please help!

[OneDay]

your second 10ml needs to be 30/70

[Skwoddy]

Your own solution is correct, but it depends what type of nic you have (pg or vg), I have a feeling that if you have pg nic you wouldnt be able to get a 30/70 ratio.

Now you have me scratching my head, you may be able to do it

Nope cant do it, you need VG nic, highest you could achieve is 47/53

[raid2506]

Thanks for the quick replies.

It has to be do-able, it's only maths!

I can make the 30/70 mix by dropping the nic to 13.5mg, but how much do I up the 70/30mg strength to compensate?

[Skwoddy]

It cant be done without lowering the nic strength.

As all your flavourings and nic are PG based

[raid2506]

Bearing in mind that I'll be mixing this with a syringe which has the numbers rubbed off I am sure 47/53 would be close enough.

[raid2506]

Just a note here, my flavouring is water based.

How is it then that I can make 50/50 with what I have but not if I wish to utilise my dodgy 70/30 mix from earlier?

Logic tells me that if I add nic to my earlier 70/30 mix to compensate for the 13.5mg in the new 30/70 mix then I should be able to get close to 20mg?

Or maybe I could just make up a hundred ml of 50/50 and throw 1ml of the trash mix in? Would be hard for CSI to even notice the nic drop! lol.

[Skwoddy]

If you made a fresh mix with your current ingredients, and keeping tha same flavour and nic strength the highest ratio of vg you could have is 53% and 47% of PG, adding this to you original mix wont take your original mix to 50/50, but closer to 60/40. Bear in mind that you only used 10% flavour too, so with a normal 20% flavour mix it would be even lower vg.

Adding nic to your original mix defeats the object of balancing the pg /vg because whilst increasing the nic to compensate you are increasing the pg and also diminishing the flavour

This is the sole reason I buy VG nic, it allows me to go as high as 20/80 pgvg on a 20% flavour ratio.

Hope this makes sense.

[Brambles]

1.74ml PG54mg
2.49 VG
0.47 flavour (10%)
0.81ml your premixed 70/30 flavoured
TOTAL 5.51ml 50/50 20mg.

Someone needs to check my maths but hardly worth it to use 0.8ml of your premix. Just start again and you can make a max of 5ml, easy as is double your amount of VG.

EDIT ---- SCRAP this as flavouring is water based. ARRRRRRRGH!

[Skwoddy]

All constraints are being changed, only minimally but that wasnt your original question, to stay at 20mg strength and 50/50.

But honestly for the sake of 20% vg, id throw it in the bin or suffer it, good luck with measuring any of those measurements on a syringe with no markings

[raid2506]

It does make sense, thanks and I will be getting some VG nic when I have the cash.

The two calculators I use both tell me 50/50 is possible with up to 13% flavouring, although I'm not worried about the flavour right now.

eJuice Me Up V11 and E-juice Calculator v13. I'm not saying they are right as they don't have any rounding data available.

Or it could be that I'm using them wrong, lol

[raid2506]

Jan 17, 2013 13:10:35 GMT Brambles said:

1.74ml PG54mg
2.49 VG
0.47 flavour (10%)
0.81ml your premixed 70/30 flavoured
TOTAL 5.51ml 50/50 20mg.

Someone needs to check my maths but hardly worth it to use 0.8ml of your premix. Just start again and you can make a max of 5ml, easy as is double your amount of VG.

EDIT ---- SCRAP this as flavouring is water based. ARRRRRRRGH!

Haha, thanks anyway. I have been going around in circles with this all morning!

[Skwoddy]

Youre using them correctly but it depends how far you want to wander both flavour and strength wise, I think those two constraints are far more importang than the vg /pg ratio, especially as were only talking 3%. Adding so much water only adds to the confusion if youre trying to balance a bad mix.

Best bet is to have a bottle of each typ of nic and depending on youre ratio requirements you have all bases covered, even using water.

[raid2506]

Jan 17, 2013 13:16:23 GMT Skwoddy said:

All constraints are being changed, only minimally but that wasnt your original question, to stay at 20mg strength and 50/50.

But honestly for the sake of 20% vg, id throw it in the bin or suffer it, good luck with measuring any of those measurements on a syringe with no markings

I'm with you there, I have no idea what I'm making really!

[Brambles]

...and during this time you have vaped 2ml so is now 8ml premixed.