Technically there is no such thing as 100% VG ejuice, that's why most vendors call them Max VG juice. Only way to get 100% is to use plain old VG and nothing else. Anyone that says it is 100% VG juice if full of Sh***. Even if you use base nic suspended in VG + a VG flavoring and used VG for the rest your still not 100% VG, the flavoring and nic take up a small percentage in that mix. So lets call it Max VG
Where nic and flavoring are used and the rest is VG no plain PG added except for flavoring.
And I do a 90/10 mix VG/Flavoring 3mg nic suspended in VG. And that is only for dripping. I use 50/50 PG/VG for my tanks.
BTW this isn't a slam on anyone, just my perspective.
Dan
You are entirely correct, but the e-juice industry has clouded the water by truncating ingredient info, presumably to make it digestible for people with no chemistry or cooking knowledge. So when we talk DIY, if we want to be precise in our descriptions, we are always fighting an uphill battle with people that are new to DIY and expect to see info in a similar format to that used for commercial juice. My big peeve is describing nicotine concentrations as "mg," as opposed to the correct units (mg/ml).
I am OK with the fact that commercial juice makers ignore the volume/mass of the nicotine and the actual flavorings (as opposed to carriers, such as PG, VG, etc.), since those amounts are pretty small, and allow us to talk in reasonably precise terms without getting bogged down in nitty gritty math whenever we describe a mix. But as you noted, the carrier of the flavorings makes a significant contribution to the mix ratios, and I am pretty sure commercial juice makers ignore that, since they always give PG/VG ratios as nice round numbers (50/50, 70/30, etc.). With the great calculator applications available for DIY (thanks, BTW), we can dial in really precise PG/VG ratios, and I think that does matter when it comes to fine tuning a recipe for one's taste. And of course it matters a lot to anyone that is PG-intolerant.
So I agree that "max VG' is a better descriptor than "100% VG" for DIY, especially when adding DW or additives into the mix. Perhaps "min PG" and "zero PG" should also have a place in our parlance. But we have to remember where people are coming from when starting out with DIY, and make the extra effort to help them understand and describe things in more precise terms, as you did with your post.
