Preheat oven to 275°F. Remove all packaging materials and place ham face down directly into baking dish or roasting pan. (Place whole ham on its side.) Cover tightly with lid, foil or place in cooking bag and heat at 275°F for approximately 12-15 minutes per pound.
Estimated heating time:
Half ham—approximately 2 hours
NOTE: If you intend to glaze ham, remove ham from oven 10 minutes before end of heating time recommended above.