Just pulled one of three pouches of Drexel VIII from the medium flat rate box that is my "cellar" for pouches.
The pouch is dated from 2016 and I've had it since roughly 2018. There must be a humectant involved, because these pouches aren't sealed, just folded over and taped in the center.
That said, I folded and stuffed some in my Stanwell 185. It was pliable and roughly "optimal" in moisture level.
It fired right up and has a nice, pleasant but generic VaPer flavor.
I don't know what voodoo they do with this pouch, but it seems a good one to throw in the glove box and forget about until needed.