I started at 10.01% per the original recipe. Steeped in my crockpot on low for 4 hours with the dropper caps on and the lid cracked a little bit. I use a Tobh RDA.
Flavoring has a normal shelf life of approximately 2 years if stored correctly. For me huge bottles aren't really the way to go, I usually mix at or under 10% with a few exceptions and it'd just cost way too much to buy 100+4oz bottles.The majority of my flavors are TFA/TPA with a few capellas here and there..... I started buying from BCV, and his prices are good, BUT on the TPA stuff hes around $4 for 30ml, and for $7ish on TPA you get 120ml. as a beginner, experiementing, mixing batches of this and that...it made sense to me to spend double and get quadruple the concentrate. Maybe its just me?