How to Reheat Prime Rib Without Overcooking It

Here is how to reheat prime rib without wrecking it: warm it low and slow. Set the oven to 250°F, put the meat in a dish with a splash of au jus or beef broth, cover it with foil and pull it as soon as the center is warm. You are warming the meat, not cooking it again.

Prime rib costs too much to turn gray and dry the next day. Gentle heat, a little liquid and a thermometer are all it takes to keep it pink and juicy. Below you will find every home method, from the oven to the microwave, plus how to store and freeze your leftovers.

The Best Way to Reheat Prime Rib

The oven at 250°F is the best way for most people. It heats the meat evenly, so the edges do not overcook before the middle warms up. The foil holds in steam, and the jus keeps the surface moist.

In a hurry? Warm thin slices in hot au jus on the stove. It takes about a minute and tastes like a steakhouse French dip. Save the microwave for when you have no other choice.

Before You Reheat: Store It Right

Good reheating starts the night before. Get the leftovers into the fridge within 2 hours of cooking. That is the USDA rule for all leftovers. Wrap the meat tight in plastic wrap and then foil, or seal it in an airtight container. For more tips, see our guide to storing leftover steak.

How Long Leftover Prime Rib Lasts

The USDA says leftovers keep 3 to 4 days in the refrigerator. If you will not eat it by then, freeze it. When in doubt, throw it out. You cannot see or smell the germs that make people sick.

Keep It in One Piece if You Can

A big piece of roast holds its juice better than slices. Every cut side is a place where moisture can escape. If you can, store the leftover roast whole and slice it after you reheat it. Store any extra jus in its own container so you have it ready.

How to Reheat Prime Rib in the Oven

This is the method we trust most. It works for a few slices or a whole roast, and the steps are almost the same. It is the same low oven we use to reheat steak.

Reheating Prime Rib Slices

1. Heat the oven to 250°F.
2. Lay the slices in a baking dish in a single layer. Thick slices, about 1 inch, work best.
3. Spoon 2 to 3 tablespoons of au jus or beef broth into the dish.
4. Cover the dish tightly with foil.
5. Heat until the center of the thickest slice reads about 120°F. This often takes 15 to 25 minutes, but go by the thermometer, not the clock.

Want the edges crisp again? Sear each slice in a very hot skillet for about 30 seconds per side right before you serve it.

Reheating a Whole Roast Cooked a Day Ahead

Cooking the roast a day early frees up your oven on a holiday. If you plan to do this, cook it a little under your target. Then reheat it like this:

1. Heat the oven to 250°F.
2. Set the roast on a wire rack in a sheet pan. Pour a little jus or broth into the pan and tent the roast loosely with foil.
3. Put a probe thermometer in the thickest part.
4. Heat until the center reaches about 115 to 120°F. A large piece can take an hour or more, so start checking at about 45 minutes.
5. For a crisp crust, take off the foil and turn the oven up to 500°F for the last 5 to 8 minutes. Watch the temperature closely.
6. Rest it for 10 minutes, then carve.

If you have not cooked the roast yet, our guide to slow roasting prime rib walks you through it.

How to Reheat Prime Rib Slices in Au Jus

This is the fastest way to keep thin slices pink. Bring your au jus to a bare simmer in a small pot, then turn off the heat. Dip slices about 1/4 inch thick into the hot jus for 30 to 60 seconds, just until they are warm. Thin slices warm through fast, so they stay rosy.

Pile them on a crusty roll for a French dip, or plate them with a spoon of horseradish sauce on the side.

How to Reheat Prime Rib in a Skillet

A skillet works well for 2 or 3 slices.

1. Set a skillet over medium low heat.
2. Add 2 tablespoons of jus or broth.
3. Add the slices in one layer and cover the pan with a lid.
4. Warm for 1 to 2 minutes per side, until just warm in the middle.

Keep the heat low. High heat tightens the meat and pushes out the juice.

How to Reheat Prime Rib in an Air Fryer

The air fryer is quick and gives the fat a little crisp. The hot moving air also dries meat fast, so keep it short.

1. Set the air fryer to about 300°F.
2. Brush the slices with a little jus and lay them flat in the basket.
3. Heat for 3 to 5 minutes, flipping once halfway.
4. Check the center with a thermometer and stop as soon as it is warm.

Thin slices will heat faster than thick ones. Times vary by model, so treat these as a starting point.

How to Reheat Prime Rib in the Microwave

The microwave is the riskiest choice. It heats unevenly, and the edges can turn gray before the middle is warm. If it is your only option, do it gently:

1. Put the slices on a microwave safe plate with a splash of jus.
2. Cover them with a damp paper towel.
3. Heat at 50 percent power in 30 second bursts. Flip or turn the slices between bursts.
4. Let them stand for a minute before you check the temperature.

The USDA also says to cover and rotate food in the microwave so it heats evenly, and to let it rest before you check the temperature.

Reheating Methods Compared

Times are guides. A thermometer is the only way to know for sure.

How to Reheat Prime Rib Without Overcooking It

• Use a thermometer. To keep it medium rare, stop when the center reaches about 120 to 130°F. Past about 135°F, it starts to turn medium. Our steak temperature guide shows where each doneness lands.
• Add liquid. A few spoons of jus or broth keep the surface from drying out.
• Cover it. Foil or a lid traps steam and keeps the heat gentle.
• Keep slices thick. Thick slices hold their juice. Slice thin only for the au jus method.
• Do not rush it. High heat is what turns a pink slice gray.

One more thing to know: the USDA says leftovers should be reheated to 165°F, measured with a food thermometer. That is the food safety standard, and it will take prime rib well past medium. Many cooks warm prime rib only until it is warm to keep it pink. If food safety is your top concern, follow the USDA number.

Can You Freeze Cooked Prime Rib?

Yes. Wrap the meat tight in plastic wrap, then put it in a freezer bag and press out the air. The USDA says frozen leftovers are best used within 3 to 4 months. They stay safe longer, but they lose moisture and flavor over time.

Thaw it in the fridge overnight. The USDA also lists cold water and the microwave as safe ways to thaw. Then reheat it with any method above. A thawed roast does best in the low oven.

What to Do if It Went Past Medium

It happens. Well done prime rib still has great flavor. Chop or slice it thin and use it where texture matters less, like French dip sandwiches, stroganoff, tacos or chili. We have plenty of ideas in our list of ways to use leftover prime rib.

And when you are ready for the next one, start with a roast worth saving. Our Bone-In Heart of Rib Roast comes in Premium Angus, USDA Prime Wet Aged or USDA Prime Dry Aged. Cook it once, then enjoy the leftovers the right way.