What Temp To Cook Pork Tenderloin

ByLily

Pork tenderloin cooks best when you understand how oven temperature and internal temperature work together. If you are wondering what temp to cook pork tenderloin, the short answer is 425°F in the oven and 145°F internally. That combo gives you a juicy center with a nicely browned outside.

This guide breaks down the exact numbers, times, and steps so you can stop guessing. You will also learn why resting matters and how to avoid the dry pork that gives this cut a bad name.

What Temp To Cook Pork Tenderloin

There are two temperatures you need to track. One is the oven setting. The other is the internal reading of the meat. Both matter, and they do different jobs.

Oven Temperature: 425°F Is The Sweet Spot

Set your oven to 425°F. This high heat roasts the outside fast and keeps the inside tender. A hot oven also creates a nice brown crust without drying out the meat.

Some recipes call for 350°F or 400°F. Those work too, but they take longer and can dry the surface. For a whole tenderloin, 425°F is the most reliable choice.

Internal Temperature: 145°F Is The Target

The USDA says pork is safe at 145°F with a three-minute rest. This is the modern standard, and it replaced the old 160°F rule years ago.

At 145°F, the meat is slightly pink in the middle. That pink is safe and it means the pork is juicy. If you cook it to 160°F, it will be dry and tough.

  • Pull it from the oven at 140°F to 145°F
  • The temp will rise 5 to 10 degrees while resting
  • Use a digital meat thermometer, not a guess
  • Check the thickest part, not the thin tail

How Long To Cook Pork Tenderloin At 425°F

Timing depends on the size of your tenderloin. Most weigh between 1 and 1.5 pounds. Here is a simple guide.

  • 1 pound: 18 to 20 minutes
  • 1.25 pounds: 20 to 22 minutes
  • 1.5 pounds: 22 to 25 minutes

These times are for a single tenderloin at 425°F. If you cook two at once, add a few minutes. Always trust the thermometer over the clock.

Step-By-Step Cooking Method

  1. Preheat the oven to 425°F. Let it fully heat before you start.
  2. Pat the pork dry with paper towels. Dry meat browns better.
  3. Trim the silver skin. It is the thin, shiny membrane on one side.
  4. Rub with oil, salt, pepper, and any herbs you like.
  5. Heat an oven-safe skillet over medium-high heat.
  6. Sear the pork for 2 minutes per side until browned.
  7. Move the skillet to the oven. Roast for 18 to 25 minutes.
  8. Check the internal temp at 15 minutes. Do not overcook.
  9. Pull at 140°F to 145°F and rest for 5 to 10 minutes.
  10. Slice against the grain into half-inch pieces.

Why Resting Time Matters

When you pull pork from the oven, the juices are still moving. If you cut it right away, those juices run onto the board and the meat turns dry.

Resting lets the juices settle back into the fibers. Cover it loosely with foil and wait at least 5 minutes. Ten minutes is even better for a larger tenderloin.

The temp will also climb a few degrees during this time. That is why you pull it a bit early. This carryover cooking is normal and helpful.

Common Mistakes To Avoid

  • Cooking to 160°F or higher, which dries out the meat
  • Skipping the rest and slicing too soon
  • Using a cold oven instead of preheating
  • Relying on time instead of a thermometer
  • Cutting with the grain instead of against it

Other Cooking Methods And Their Temps

Oven roasting is the most common method, but you have other options. Each one uses a different temp and time.

Grilling Pork Tenderloin

Grill over medium-high heat, around 400°F to 450°F. Sear each side for 2 to 3 minutes, then move to indirect heat. Cook until the internal temp hits 145°F. This takes about 15 to 20 minutes total.

Air Fryer Pork Tenderloin

Set the air fryer to 400°F. Cook for 15 to 20 minutes, flipping halfway. The small basket size means you may need to cut the tenderloin to fit. Check the temp at 12 minutes.

Sous Vide Pork Tenderloin

Set the water bath to 140°F and cook for 2 to 3 hours. Then sear in a hot pan for 1 minute per side. This method gives perfect doneness every time, but it takes planning.

Pan-Seared On The Stove

Use a heavy skillet over medium-high heat. Sear for 3 to 4 minutes per side. This works for thin cuts, but a whole tenderloin is too thick to cook through this way alone.

Tips For Juicy Pork Every Time

  • Buy a digital thermometer. It is the single best tool for this cut.
  • Brine the pork for 30 minutes in salt water for extra moisture.
  • Let the meat sit at room temp for 15 minutes before cooking.
  • Do not overcrowd the pan. Steam makes meat tough.
  • Slice thin and against the grain for the tenderest bites.

Pork tenderloin is lean, so it has little fat to protect it. That is why temperature control matters so much. Get the oven and internal temps right, and you will get a tender, juicy result every time.

So the next time you cook this cut, remember two numbers. Set the oven to 425°F. Pull the meat at 145°F. Rest it, slice it, and enjoy a meal that beats any dry pork you have had before.

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