Store spices in their jar in a cool, dark cupboard. If grinding, do so
just prior to use as pre-ground spices lose flavor and aroma over time.
Whole long pepper can be used in brines, marinades, and pickling solutions.
How to Quick Pickle
How to Brine Meat & Poultry
Gently toast long pepper in a dry pan prior to grinding for stronger
flavor. If grinding in a peppermill you may have to break it into
smaller pieces first.
Once ground, use as you would black pepper, it's particularly good in curries.
How to Grind Whole Spices