I am still learning that...a couple I have been able to vape right away but were so much better a week later. I use my 808 to taste test and if not good then set back a week and then revisit. The vaporrenu I just got yesterday and went ahead and loaded a cart with the butterscotch because it tested okay and I could "taste" it but I can tell it will be better next week. It does have a slight off taste but vapable. I think a lot depends on the flavor of the juice...maybe a vet could jump in and help us out with that question. Anyone?
I have ordered a few juices from vaporrenu. The first ones were mixed with their renu mix and they were terrible! Even after sitting for 3 weeks or longer now, still can't stand them. Jason there at vaporrenu did send me two free bottles to replace the others, and I got them just straight 60pg/40vg no extra flavor. Cinnamon roll and orange cream, both were good to vape without the nasty chemical taste and smell. So I guess there is hope for vaporrenu. My husband loves the West Coast Tobacco and Honey Wood Tobacco from them. All 60pg/40vg in an echo-e cartomizer. Hope some of this helped you or someone out there!! LOL! And keep on vaping!!