Black Pepper (Peppercorn) Powder.

Pepper is best purchased whole, as freshly ground pepper is vastly superior to the ready ground powder. Whole peppercorns keep their flavour indefinitely but quickly loses its aroma and heat after it has been ground. Peppercorns are very hard but easily ground in a peppermill. Cracked pepper is the partially broken corns, crushed using a mortar and pestle or with a rolling pin. Dried green peppercorns can be reconstituted for mashing into a paste by soaking in water. Peppercorns should be stored in airtight containers, away from sunlight. 

Medicinal Properties of Black Pepper:  

Stomachic; carminative; aromatic stimulant; antibacterial; diaphoretic. Stimulates the taste-buds causing reflex stimulation of gastric secretions, improving digestion and treating gastro-intestinal upsets and flatulence. Pepper calms nausea and raises body temperature, making it valuable for treating fevers and chills.