The Briary has always just had a box of the different PS flake open and dish out the flakes as bulk. I've never gotten a dry flake from them. As of the last year I have jarred up 9 lbs of LTF and 6 lbs of LNF, and when air pop a jar I just put the flakes in a leather bag and smoke them till their gone. The boxes are wrapped in plastic, not sealed, and the bags used to unsealed until very recently, and I've never had a dry flake until I place it under a light bulb, but this is humid Alabama, so YMMV. But, I wouldn't worry much about it, they seem to hold their moisutre, unlike other flakes I smoke.