Although spoilage may be minimal, expiration dates are used on such products as spiral ham to ensure quality and reliability of the meat. Most spiral hams have a seven-to-10 day use by date on the expiration date label.
Generally, you boil potatoes when you plan to mash them or toss them into a salad, though boiled potatoes can also make a quick side dish. Boiling also cooks potatoes very evenly all the way through and usually only takes 10 to 20 minutes.
Boiled sweet potatoes. 1  Wash and pierce the sweet potatoes. 2  Place whole potatoes in a large pot. 3  Cover completely with water.  Boil approximately 30 minutes for 5 medium sweet potatoes.