Parchment papers are cellulose based papers used for baking. These papers are acid treated and they give a non- stick like surface while baking. Generally, parchment paper is made by running sheets of paper pulp through a bath of sulfuric acid or zinc chloride.
Subsequently, how do you make parchment paper out of animal skin?
Parchment is made by soaking an animal skin (usually from a goat, sheep or calf) in lime and then stretching it on a frame, scraping it to remove excess tissue and allowing it to dry under tension. During this process, the collagen of the skin is rearranged, but not chemically altered.