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How To Reheat Pork Tenderloin – I Test 6 Methods [Pics]

Succulent, flavorful pork tenderloin, seared and roasted in the oven, can be a truly mouth-watering meal.

But have you ever wondered if there’s a way to reheat it that keeps it moist and soft while retaining its delicious, meaty flavor?

In this post, I’ll go through six different warming methods to show you that it is indeed possible.

Say goodbye to dry, chewy pork and hello to delicious, succulent leftovers (you’ll never know!).

A note on my experiment

Just the other day, I made a Sunday roast of pork tenderloin with veggies and roast potatoes (yum!).

Surprisingly, we ended up with leftovers, which I decided to store in the fridge and experiment with the next day.

Determined to reinvigorate my remaining pork, I tried out six different reheating methods, including:

  • In the oven (good for large quantities)
  • In the microwave (convenient and fast)
  • In hot gravy (keeps the pork moist and adds flavor)
  • In the air fryer (okay but overcooked the edges)
  • In a skillet (effective but can be a hassle)
  • Steaming (tender, flavorful results)

The oven was convenient and low-fuss and worked beautifully for my unsliced leftovers.

The microwave, while risky, can result in really tender meat if you’re careful.

Reheating my leftovers in hot gravy was a total winner, and they turned out so flavorful.

The skillet method was good, adding a nice, seared taste.

Steaming also produced great results, keeping my pork soft and moist.

Related: How To Reheat Crispy Pork Belly

Reheating pork tenderloin in the oven

Bring your pork tenderloin to room temperature while you preheat your oven to 325°F (160°C). Then, wrap your whole or sliced tenderloin tightly in foil after drizzling it with a few tablespoons of stock or cooking juices. Place your foil package on a wire rack and heat for 10-20 minutes (longer for a whole tenderloin).

You want your pork to reach an internal temperature of 165°F (75°C).

How to reheat pork tenderloin in the oven:

  1. Preheat your oven to 325°F (160°C), taking the pork out of the fridge at the same time to reach room temperature.
  2. Drizzle your tenderloin with stock or cooking juices, and then wrap it tightly in foil (whole or sliced).
  3. Pop your foil parcel onto a wire rack.
  4. Heat it for 10-20 minutes or until it reaches an internal temperature of 165°F (75°C).
  5. Optional (if whole): Pat your warmed tenderloin dry with a piece of paper towel.
  6. Optional (if whole): Place a skillet on high heat on your stove and warm a tablespoon of oil.
  7. Optional (if whole): Once hot, sear your meat on all sides (except on the cut) for 60-90 seconds, until crisp.

Using a wire rack gives you even, all-over heating, whereas a baking try is more inclined to warm one side faster than the other.

Similarly, room-temperature meat will heat more evenly than meat just out of the fridge.

Your heating time will depend on the size of the portion you’re warming up. You can unwrap the foil to check on the meat periodically, but don’t forget to seal the parcel up again.

My verdict

This method is great for keeping pork tenderloin moist and tender. It also doesn’t affect the coloration of the meat too much. 

It’s versatile because you can heat either slices or whole cuts of meat. 

The only downside is it’s a little slow.

Reheating pork tenderloin in the microwave

Carve your pork tenderloin into slices. Spread them out on a microwave-safe plate and sprinkle with stock or leftover cooking juices before covering them with a damp paper towel. On medium heat (50% power), warm your pork in 30-second intervals until hot.

A little added liquid, as well as the dampness of the paper towel, helps to prevent your meat from drying out.

How to reheat pork tenderloin in the microwave:

  1. Cut your leftover pork tenderloin into slices.
  2. Place a few slices on a microwave-safe plate and sprinkle with stock or cooking juices.
  3. Cover the meat with a piece of damp paper towel.
  4. Set your microwave to medium (50% power).
  5. Heat your pork in 30-second intervals until warm to your satisfaction.

It’s best to microwave your pork in short intervals so that you don’t accidentally start cooking it, turning it unappetizing and tough.

Stick to warming 2 to 3 slices at a time, as crowding your plate may result in uneven heating and cold spots.

My verdict

This method can be tricky but is effective when done right.

The greatest risk is drying out your meat, so added moisture is so essential, as is checking your heating progress at every interval.

In summary: OK if you’re in a hurry and heating a single portion for yourself.

Reheating pork tenderloin in hot gravy

Take your pork out of the fridge and allow it to come to room temperature. In the meantime, warm up some leftover (or fresh) gravy in a pan on the stove. Once simmering, remove the gravy from the heat and add a few thin tenderloin slices. Let them warm up for 1-2 minutes before serving.

Thin slices work best for this method, so try to keep them to about a quarter-inch in thickness.

How to reheat pork tenderloin in hot gravy:

  1. Allow your leftover pork to come to room temperature out of the fridge.
  2. Warm up some leftover or freshly-made gravy in a skillet on medium heat.
  3. Once simmering, remove the gravy from the stove and add some pork slices.
  4. Allow them to warm up for 1-2 minutes.
  5. Serve immediately.

For a delicious flavor infusion, it’s good to use the actual cooking juices from your pork or a rich, tasty gravy.

However, if you don’t have either of those available, you can also use stock.

Try to avoid letting your gravy boil, as this is too harsh for your delicate pork slices and will cook them rather than warm them.

My verdict

This method delivers delicious results and keeps the meat juicy – because you’re heating it in juices!

Note: An internal temperature of 165°F (75°C) is recommended for reheated meat, but you’re unlikely to reach this using the gravy method. Therefore, avoid if you’re worried about harmful bacteria.

Reheating pork tenderloin in the air fryer

Set your air fryer to 250°F (150°C). Slice your leftover pork tenderloin into 1-inch slices. Wrap a few of these slices tightly in foil after sprinkling with leftover cooking juices or stock. Heat for 5-10 minutes, checking progress at the halfway mark. Serve once warm to your satisfaction.

Wrapping your slices in foil locks in moisture to keep your meat tender and soft.

How to reheat pork tenderloin in the air fryer:

  1. Set your air fryer to 250°F (120°C).
  2. Slice your pork tenderloin into roughly one-inch-thick slices.
  3. Sprinkle a few pieces with stock or leftover cooking juices.
  4. Wrap them tightly in foil and place them in your fryer basket.
  5. Heat for 5-10 minutes or until warm to your satisfaction.
  6. Serve immediately.

Your slices are ready once they reach an internal temperature of 165°F (75°C). You can test this using a meat thermometer.

In the air fryer, it’s best to stick to reheating slices.

Whole pork tenderloins are likely to dry out with the sides turning tough before the center has a chance to warm up.

My verdict

This wasn’t my favorite method. Air fryers are a little too abrasive for reheating softer, more succulent meats like pork tenderloin.

Reheating pork tenderloin in a skillet

Heat some oil in a pan over medium heat. Place your leftover pork tenderloin (sliced or whole) in the pan and cover with a lid. Flip slices every minute or so, or if you’re reheating an entire cut, flip it every 2-3 minutes. Once warm, remove from the heat and serve immediately.

This process should take roughly 2-3 minutes for slices or 10-15 minutes for whole pork tenderloin.

How to reheat pork tenderloin in a skillet:

  1. On medium heat, warm up some oil in a skillet (not too much, about a tablespoon).
  2. Once your oil is hot, add your leftover pork (whole or sliced).
  3. Cover the pan with a lid.
  4. Flip slices every minute or a whole tenderloin every 2-3 minutes.
  5. Once warm to the center (165°F (75°C), serve immediately.

Sealing your pan with a lid allows your meat to steam, locking in moisture while searing it and turning the outside crisp.

If you don’t have a lid, you can improvise by using a piece of foil.

Sticking to a lower heat reduces the chances of overcooking your meat.

In this regard, whole tenderloins are trickier than slices, so be patient and keep your meat thermometer handy.

My verdict

This method is pretty good, and I was pleased with the outcome.

It’s a bit of a hassle with all the flipping, and the outside obviously cooks a bit more than with the other methods, but the results were still tasty.

Reheating pork tenderloin by steaming it

Slice your leftover pork and allow it to come to room temperature. Set up your steamer and fill the bottom compartment with a poaching liquid of stock and herbs. Once boiling, spread out your pork slices in the steamer basket and warm them for 3-4 minutes.

Using a flavored liquid rather than water will infuse your tenderloin with delicious flavors.

How to reheat pork tenderloin by steaming it:

  1. Let your pork tenderloin come to room temperature out of the fridge.
  2. If not already carved, slice it into thinnish, one-quarter-inch slices.
  3. Set up your steamer and fill the bottom with a poaching liquid of stock and herbs (or water).
  4. Once boiling, spread out a few pork slices in the steamer basket.
  5. Warm up your meat for 3-4 minutes or until hot to your satisfaction.

The steam created by the boiling liquid is very hot, so this method is quicker than you might expect.

Don’t leave your pork in the steamer for too long, as it may start cooking and turn chewy and unpleasant.

My verdict

The steamer kept my pork flavorful, juicy, and tender.

Admittedly, it cooked the pork a little on the outside, but not so much that I minded or that it jeopardized the flavor.

How to store pork tenderloin

You can store pork tenderloin in the fridge for 3-4 days. It’s best to keep it whole, as slices are more inclined to dry out. To store, wrap your leftovers tightly in plastic wrap or foil. Keep leftover pork tenderloin in a colder part of your fridge, like the bottom shelf or crisper dish.

Don’t leave your pork tenderloin out for more than two hours at room temperature, as it may start to spoil.

Can you freeze pork tenderloin?

Pork tenderloin freezes well and retains its best quality for 6 months. It can be frozen sliced or whole, but slices are more likely to develop freezer burn, particularly if they’re not stored correctly. It’s best to double wrap your leftover pork in plastic and foil before placing it in the freezer.

How to freeze pork tenderloin:

  1. Allow your pork tenderloin to cool to room temperature.
  2. Slice up your leftovers (for easy-to-grab portions) or leave your pork tenderloin whole.
  3. Sprinkle the meat with leftover cooking juices or a bit of stock to keep it moist.
  4. Wrap tightly in plastic wrap and then in a second layer of foil.
  5. Alternatively, place your leftover pork in a heavy-duty freezer bag and vacuum-seal.
  6. Mark, store in the freezer and use within 6 months.

When it comes to freezing, slices are easier to thaw and great for portioning, but they’re also more susceptible to freezer burn.

Whole tenderloins take much longer to thaw but last longer in the freezer.

When wrapping your meat, make sure there is no air left inside the package. Air pockets are a sure-fire way to end up with freezer-burnt pork.

How to thaw pork tenderloin

Pork tenderloin should always be thawed before reheating, as reheating from frozen will result in an overcooked outside with a cold center. Thaw your leftovers in the fridge overnight. If you’re in a hurry, you can use your microwave’s defrost setting or run your sealed pork under cold water until soft.

Once thawed, you can reheat your leftover pork tenderloin using any of the methods outlined above.

The BEST Way To Reheat Pork Tenderloin

In this short recipe, I show you the best way to revive and reheat your leftover pork tenderloin.
5 from 1 vote
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Course: Main Course
Cuisine: American
Keyword: pork tenderloin, reheat pork tenderloin
Prep Time: 0 minutes
Cook Time: 2 minutes
Total Time: 2 minutes
Servings: 1 person
Calories: 143kcal

Ingredients

  • 1 portion pork tenderloin sliced
  • 1 portion gravy

Instructions

  • Allow your leftover pork to come to room temperature out of the fridge.
  • Warm up some leftover or freshly-made gravy in a skillet on medium heat.
  • Once simmering, remove the gravy from the stove and add some pork slices.
  • Allow them to warm up for 1-2 minutes. Serve immediately.

Notes

For a delicious flavor infusion, it’s good to use the actual cooking juices from your pork or a rich, tasty gravy.
However, if you don’t have either of those available, you can also use stock.
Try to avoid letting your gravy boil, as this is too harsh for your delicate pork slices and will cook them rather than warm them.

Nutrition

Serving: 100g | Calories: 143kcal

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