Good Questions. Pin it. Q: I'm a surgical resident and I'm frequently on call at the hospital with little time to spare in between cases, so I rarely get to sit down to eat dinner (even a quick one!). The only fridge is nowhere near the ORs, plus there isn't usually time to run down and heat up food to eat.
2 1/2 hours. Here's how: Preheat the oven to 325, place the ham on a rack in a baking dish with a little water in the bottom. Wrap in foil, bake for about 2 hours, or until th â¦ e internal temperature is 135 - 140 degrees.5 minutes per pound at 350 degrees. So, for a 7 lb. ham you are looking at just over an hour. If you aren't sure, cut a small slit on the largest part of the ham and feel if it's warmed through. Bone-in hams cook faster.
1 For a ham that has only been partially cooked, you will need to allow about 20 minutes per pound in a moderate (350 degrees F/175 degrees C) oven. 2  A fully cooked ham will require about 10 minutes per pound in order to be heated all the way through.