I use wax paper.
My buddy uses coffee filters.
There is some video I saw from tga where he uses wax and then puts it in the freezer as well for a bit before it dries.
You are supposed tamp it dry with the screen and a towel,
pressing lightly to remove excess water, then crumble onto cardboard.
Never sticks to the cardboard when I do massive batches of bubbs.
Instead of wax paper ... why not use baker's parchment paper, or even large tyvek envelopes? I would hate to think I might be smoking a bit of paraffin along with that bubble sifted kief.
May I ask why? I find it does a great job of pulling moisture from the center to the outside of the hash patty and reducing my drying time. The end product is amazing as well, full melt. Just curious if I could be doing it better.
You can get this no stick paper for baking called Parchment paper, its similar to wax paper but I find it does the job better.
I also like to keep the drying hash over a warm surface like a router, computer, modem. It drys a little more sticky this way. Otherwise it drys rock hard and needs to be pressed.