Interesting.
I just yesterday got my small jar of EM crystals so I haven't had time to play around with it yet. But I couldn't resist just opening it, sniffing it and tasting it. To me it smelled very close to caramellised sugar (sugar heated in a saucepan 'til it turns amber-brown, used to make creme caramel/flan or as a glue when making gingerbread houses), somewhere between "strong" and "this is too burnt for the kids to like it"
(my grandma used to make a very simple candy of what was left from gluing the gingerbread house together: pour the rest of the caramel on a baking sheet, add almond shavings, let cool and break into pieces - very often this became the "adult candy", because of the strong/bitter burnt taste. Oh no, now I want some!).
But I did think the few EM crystals I put on my tongue tasted sweet - a surprisingly neutral sweet compared to the smell. More simple sirup than cristalline sugar.
I know I have some weird taste-sensitivities, especially when it comes to sucralose (Splenda) - I can taste it, and I don't like the taste one bit (it's a little bit like one part of the flavour of the white rind of many citrus fruits). Stevia I've never tried, and have no idea what it actually is (chemically, I mean, I know it comes from a plant).
Can I ask a really lazy question? And could someone take pity on me and answer it (a link is fine)?
If you are using at least some VG in your blend, why not dissolve the EM in PGA? Or vodka?
(I obviously haven't tried this yet, but that is what I instinctively would do: a flavour additive is in crystal form? Dissolve it in alcohol!)
Or is the problem that even in a water-alcohol solution (let's say 50-60% ethanol) the saturation point is rather low? Is it even lower than for PG (10% per above)?
Are there handy tables anywhere about how soluble things (the things we mostly use here) are in different mediums? (If there is such a resource, it should be a sticky here - and if it already is a sticky I apologise for my illiteracy and stupidity.)
I'm probably just really dense here, but I don't understand exactly why PG seems such a preferred solvent for many things. Is it because people don't want to use any VG at all, and diluting PG with DW or PGA would make the liquid too thin and non-vapeable?
I would think that given that I want to use at least some VG (15-30%), having some flavour concentrates or intermediate stages already in PGA/DW/Vodka would only be a plus?
Edited to add: I knew I had read something about this here somewhere, and found
this thread about EM, it is a bit messy, but also gives lots of interesting pointers on using Tobacco Absolute (which I also just bought, by Flavour Art, smells wonderful, like a spicy prune-marmelade).
In the thread above I also found the following for solubility of EM:
alcohol, 12%
propylene glycol, 5.5%
So it seems to me that making a super-saturated PG-EM solution is a bit of a wasted effort, unless you want to use it all at once and don't mind working with it at a significantly higher temp than normal.
(BTW, Just from the name I though EM was an alcohol, but looking around a bit on wikipedia made me realize that I actually have no idea what is and isn't an alcohol - I really should dig out my high school chemistry books. Or maybe I need to find a forum: "Remedial Chemistry for Nerdy Humanists as it pertains to making e-liquid"... Oh, if anyone have any good basic chemistry textbooks they recommend I'd be really happy to hear about that - my high school books were rather crap and uninspiring iirc. )