Alright, I've hit a brick wall and I need your help. I've been dialing in my super duper secret rub, and have ended up with a paste that comes mainly from soy and Worcestershire sauce (with some bourbon in there when I'm not too busy drinking it). Now, I like pastes or wet rubs, but I'd really like to put this sucker in powder form. I tried putting the convection oven on, with the door open, to 170 degrees but it just stuck to the wax paper. Any ideas?