premise: To age a paper scroll
hypothesis: Set your strip of paper in any kind of metal or glass pan. Pour hot or cold coffee over your paper, just enough to cover it and make sure the paper is completely submerged on either side. Leave to soak 5-10 minutes depending on how dark you want it to be. Pour out all of the coffee and bake for 10 minutes in oven preheated to 400F until it is fully dry.