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How to Reheat Roast Beef

Imagine this: You had a delightful dinner last night with a perfectly cooked roast beef as the main attraction. The memory of its juicy tenderness still lingers in your mind.

But today, you have leftovers. No worries! Leftover roast beef can be just as delicious when reheated properly.

In this guide, we’ll explore various methods to reheat roast beef, ensuring that it retains its flavor and texture. So, let’s get started!

Roast beef on a cutting board with slices already cut.

Why Properly Reheating Roast Beef is Essential

Did you know that 40% of the food in the U.S. goes uneaten each year? That’s a lot of waste! So, making the most out of leftovers, like our roast beef, is not only delicious but also eco-friendly.

However, there’s a common concern: How do you reheat without drying out the meat or losing its flavor? The key is choosing the right method and following some easy steps.

Tips Before You Start Reheating

  1. Check the Thickness: If your roast beef slices are thin, they’ll reheat quicker. If they’re thicker, they might need a bit more time.
  2. Avoid High Temperatures: Cooking at too high of a temperature can dry out your meat. It’s best to use moderate heat and take your time.
  3. Use Liquid: Adding a bit of broth or water can help keep the meat juicy.
  4. Check Regularly: To avoid overcooking, it’s always good to check the roast beef’s temperature now and then.

Methods to Reheat Roast Beef


  1. Place the roast beef in a microwave-safe dish. Add a splash of beef broth or water to keep the meat moist.
  2. Cover the dish with a microwave-safe lid or plastic wrap. Make sure to leave a small corner open for steam to escape.
  3. Use the microwave’s ‘reheat’ setting, or set it to medium power. Heat in one-minute intervals, checking in between to avoid overcooking.
  4. Once it’s heated through, let it stand for a minute or two before serving.


  1. Preheat your oven to 250°F (120°C).
  2. Place the roast beef in an oven-safe dish. Add a bit of beef broth or water.
  3. Cover the dish with aluminum foil.
  4. Reheat for about 20-30 minutes, depending on the thickness of the meat. Check its temperature using a meat thermometer. Aim for an internal temperature of 165°F (74°C) for safe consumption.


  1. Add a bit of beef broth or water to a skillet.
  2. Once the liquid is warm, add the roast beef slices.
  3. Cover and simmer on low heat, checking occasionally until it’s heated through.

Air Fryer

Although not as common, an air fryer can work for reheating roast beef.

  1. Preheat the air fryer to 250°F (120°C).
  2. Place the roast beef inside without overcrowding. Do not add any liquid.
  3. Reheat for about 10 minutes, checking to ensure it doesn’t overcook.
MicrowaveFastest method; ConvenientMight unevenly heat meat
OvenEven reheating; Retains moisture wellTakes longer
StoveGreat for slices; Can add flavorsCan be uneven for thicker cuts
Air FryerCrispier exteriorMight dry out if not watched

Ways to Use Leftover Roast Beef

  1. Roast Beef Sandwiches: Sliced thin with some mayo, lettuce, and cheese.
  2. Beef Stir Fry: Toss with your favorite veggies and sauce.
  3. Beef Salad: Mix with greens, cherry tomatoes, and a vinaigrette.
  4. Beef Tacos: Spice it up with some salsa and cheese.


Reheating roast beef isn’t just about warming up leftovers. It’s about reliving that delightful dinner and savoring every bite. Remember that an estimated 90% of Americans throw away food prematurely.

By reheating and repurposing our roast beef, we’re not just treating our taste buds but also making a small effort towards reducing food waste.

So next time you look at that leftover roast beef, see it as an opportunity for another delectable meal!

Roast beef on a cutting board with slices already cut.

How To Reheat Roast beef

A handy guide to properly reheat your leftover roast beef using four methods: microwave, oven, stove, and air fryer, ensuring flavorful and moist results every time.
No ratings yet
Cook Time 10 minutes
Course Main Course
Cuisine American


  • Leftover Roast Beef
  • Beef broth or water



  • Place roast beef in a microwave-safe dish.
  • Add a splash of beef broth or water.
  • Cover, leaving a corner open for steam.
  • Heat on 'reheat' or medium power in one-minute intervals.


  • Preheat to 250°F (120°C).
  • Add roast beef to an oven-safe dish with some broth or water.
  • Cover with foil.
  • Bake for 20-30 minutes, checking for an internal temperature of 165°F (74°C).


  • Warm beef broth or water in a skillet.
  • Add roast beef slices.
  • Cover and simmer on low heat until heated through.

Air Fryer

  • Preheat to 250°F (120°C).
  • Add roast beef without overcrowding.
  • Cook for 10 minutes, ensuring it doesn't overcook.
Keyword How to reheat roast beef, Leftover roast beef
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