I'm not sure this is the place for this however, I use this method for bring dry leaf into case for rolling cigars. I have a large (12" X 18" X 24") plastic box with a cover. (Walmart, cheap). It is pretty good for storage but not really air/moisture tight. I took a couple of plastic water bottles and drilled a bunch of 3/16th holes in it (No holes in the bottom quarter). If you put holes closer to the bottom it leaks/bleeds water out the bottom. I fill the bottle with water and freeze it to make drilling the holes easier. When it thaws I drain it and add ½ teaspoon of the water retaining crystals and soak it in rain water till the crystals completely expand. I allow the bottle to drain for half an hour or so and but on the cap. Two of these bottles go in the corners of the box with the too dry leaf. I put the top on and leave it alone for a few days. The leaf hydrates and is usable. I found if I added four bottles the leaf got too damp and I got a little mold.