Reheating Prime Rib

I am cooking an 18 lb. prime rib Christmas day and then traveling an hour and a half to serve the meal. At what temperature and for how long should I reheat the prime rib before serving. I don't want to overcook it.
Best Answer
It's really difficult to give good numbers for this, as it's a factor of the shape of the item, what temperature it was when you started, etc.
If you're okay with losing a bit of the crunchy exterior, wrap it in foil and put it in a low oven (200 to 250°F ~ 95 to 120°C) until it's back up to the temperature to serve it at.
If you want it re-crisp the outside, you can either unwrap it as it's almost at the right internal temperature, and turn the heat up some ... or you can put it under the broiler (grill ... whatever you call heat from the top only)
Another option, if you're serving it au jus (in its drippings) is to heat up the drippings, then put slices in the juice to warm it up ... but at 18lbs, that might not work so well. (although it might be worth trying to heat it up sliced, rather than one giant roast, if the interior has cooled down significantly)
Also consider removing it from the oven before you typically would and how you pack it for transport.
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Quick Answer about "Reheating Prime Rib"
Place in a preheated 300-degree oven for approximately 20 to 30 minutes, depending on the size of the piece. The USDA recommends that reheated leftover meat reach an internal temperature of 160 degrees, which is well beyond medium rare at 140 degrees.How do you reheat prime rib without drying it out?
To keep the meat from drying out while cooking, you can drizzle in some leftover prime rib juices or broth before sealing it up. Then, place the meat in your steamer basket, cover your pot with a lid, and allow the prime rib to steam for 3\u20136 minutes, depending on its thickness.How do you reheat cooked prime rib?
Preheat your oven to 250F, and add the slices of prime rib to a small baking pan with a few tablespoons of broth (water works too, but might dilute the flavor of the meat a bit). Cover the pan tightly with foil and warm it in oven until the prime rib slices feel like they've heated through, about 10 minutes.How do you reheat a rib roast without overcooking it?
Add the slices of prime rib to a small baking pan with a few tablespoons of broth or leftover pan gravy (water works fine but it might dilute the flavor of the meat). Cover the pan tightly with aluminum foil and warm it in oven until the prime rib slices feel like they've heated through, about 10 minutes.How do you reheat meat without drying it out?
In order to keep meat from drying out, you need to reheat it low and slow, says Appel. Place the meat in a baking dish and bake in the oven at 200 to 250 degrees until it's warmed through. A one-inch thick steak or chicken breast should take 20 to 30 minutes.How to reheat prime rib in the oven
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