Are the concentrated flavors bad. I have thought of just putting a drop of the coffee clear and see if it has a taste at all, but do not want to destroy my taste buds if you know what I mean. I bumped the flavs up to 15% - 18% yesterday. I am going to give them a few days to steep and then try them again.
I just saw the recipe for making your own coffee flavor and I am going to try it. Coffee flavors have become the base for everything that I
vape. I then mix in other flavors to enhance it (brandy, cherry, irish creme, amaretto, and a few others).