Where does Ground Pepper Come from?

Black ground pepper is produced from the still-green unripe berries of the pepper plant. The berries are cooked in hot water, both to clean them and to prepare them for drying. The heat ruptures cell walls in the pepper, speeding the work of browning enzymes during drying. After wards, the pepper around the seed shrinks and darkens into a thin, black layer and a pepper is formed.