IS this safe? Help please

[Ehvam]

A friend of mine I share my mixes with gave me an awesome bottle of whiskey- a smokey, delicious, spicy flavored whiskey- great stuff. We were drinking it (thus why I may have done something this dumb- and the idea came up as to how nice it would be to vape the flavor.
So I did an experiment. Knowing that the flavors come from "casings" and not the alcohol, I poured a shot glass worth into a steel pan and burned the alcohol off by lighting it. I then reduced what was left over a low fire. I was left with about 2ml of really thick and condensed flavoring. I added to some pg/vg and I just tasted it- just like the whiskey!!!!
Awesome!
But is this safe? I vaguely remember people saying inhaling alcohol was bad for you, but I know people use PGA, so what gives?
Is there much alcohol left here? Is it bad for you?
I hope not cause this tastes awesome!!!!

 

[dirtmonkey]

I wouldn't worry about the alcohol, the common toxic ones are isopropyl and methyl, which wouldn't be in liquor (hopefully!) but might worry a little bit about the tannins and sugars in the concentrate. Even then, not so much for my own safety as for messing up the equipment...