Coffee with the mucilage and skin retained is called parchment coffee.
Coffee contains caffeine, an alkaloid.
Coffee is a stimulant, not a food crop. The beand are contained in ovoid pods that grow directly on the trunk and on major branches. The beand and the white mucilage or pulp that surrounds them represent about one-third of the total weight of the pods. The nibs are ground to give cocoa mass, from which cocoa fat or butter is extracted by pressing. Pods, shells, pulp and cake have only limited use as an animal feed owing to their high alkaloid content.