How many hours in the frig to thaw an 18 lb precooked bone in frozen ham?

To thaw an 18 lb precooked bone-in frozen ham in the refrigerator, it is recommended to allow about 4 to 6 hours per pound. This means you should plan for approximately 72 to 108 hours, or 3 to 4.5 days, for complete thawing. Ensure the refrigerator is set at or below 40°F (4°C) for safe thawing. For quicker thawing, consider using the cold water method, which requires about 30 minutes per pound.