Pork tenderloin is among the leanest and most soft meat cuts available, so it may be pricey. On the other hand, it can be a good deal if you’re searching for a sheer amount of flesh that can feed a party.
This dish is considerably versatile, which means you can add extra ingredients such as chopped garlic, fresh herbs, or dried fruits to boost its flavor.
What’s more, it requires less time to cook well. How long to cook pork tenderloin in oven at 400? The answer is around 25 minutes. Just remember to thaw it correctly before reheating.

How Long To Cook Pork Tenderloin In Oven At 400?
As shared earlier, tenderloin doesn’t require much time to be cooked thoroughly. In particular, it only takes you about 25 minutes to reheat this dish in the oven at 400°F.
To ensure that the flesh is cooked perfectly after this duration, you may need the help of a meat thermometer.
That is, however, merely a rough estimate. There are other elements affecting the exact cooking time of the meat, such as its fat content, density, or thickness.
For more consistent heat distribution and superior taste, cook for 7 minutes for each pound of weight, plus an extra 10 minutes sitting before consumption.
You may wonder why this dish takes longer to be fully cooked than brined roasts like a beef brined roast, right? That’s because this flesh is leaner while it contains less moisture inside the texture.
It does not imply that it takes an extremely long time to prepare; it only takes 25 minutes, as previously stated. It’s just that pork loin takes a bit longer than specific other recipes, such as brined roasts.
That said, you also need to keep in mind that this meat is not suitable to overcook in the oven. Overcooked pork loin will undoubtedly be dry and tough, making it less attractive and delectable.
Moreover, USDA also emphasizes that overcooking this dish can cause significant shrinkage, which may accidentally serve less for a person.
The good news is that it takes less time to toast this recipe rather than other parts like shoulder or ribs. As a result, you should keep a close eye on the thermometer and take it out of the oven once it reaches 150°F or 160°F.
In general, this heat will vary depending on the thickness of your steak, so keep an eye on it until it reaches the ideal doneness. Finally, keep in mind that food is tastier when not rushed or disrupted.

Why Does It Take That Long To Make Pork Tenderloin In Oven At 400?
Usually, cooks leave a large piece of meat whole and wrap it in foil when cooking. Therefore, it’s pretty challenging to tell if its internal flesh is cooked perfectly or not.
Moreover, this meat will be best when tender, juicy, and a little pink. Thus, you need to check it several times using a thermometer before taking it out of the oven. This process takes time!
Besides, it would be best if you also flipped periodically while cooking. This phase often takes about six minutes so that each side of the meat is evenly exposed to the heat.
The whole flipping process is around 10 to 12 minutes.
Cooking times might fluctuate due to the thickness of the steak, so it is essential to use a thermometer to inspect for desired consistency.
You should also allow 10 minutes for the pork to rest before cutting to ensure consistent heat spreading and more excellent quality.
The National Pork Board also recommends that the ideal internal temperature for the loin should be at least 145° F for safe consumption.
All reasons explain why you need to cook this food in about 25 minutes in the oven at 400°F.
How To Cook Pork Tenderloin In Oven With Foil At 400?
To learn how to roast tenderloin perfectly in the oven at 400 degrees Fahrenheit, you can consider following this recipe:
Step 1: Preheat The Oven At 400°F
Step 2: Prepare The Pan With Foil
While waiting for the oven to heat up, place the foil on top of a baking pan and fully wrap the foil around it.
Step 3: Evenly Marinate The Pork With Seasonings
Add garlic cloves, black pepper, a little lemon juice, salt, olive oil, and dried herbs to a bowl.
Spread the pork loin evenly over the baking pan, pour the marinade onto the flesh. Then use foil to wrap it thoroughly.

Step 4: Place The Baking Pan In The Oven
Set the roasting time within 25 minutes. Always check the internal temperature to ensure it’s at least 145 degrees F.
Remove the upper foil after 25 minutes. Allow additional 10 minutes for the loin to thoroughly roast until it gets the desirable golden brown color. You can speed up the temperature a bit for a better result.
Step 5: Remove It From The Heat
Remove the meat from the oven after 10 minutes and set it aside to sit for another 10 minutes.
Step 6: Serve And Enjoy
Use a sharp knife after the resting time and carefully cut it into thin slices and enjoy!
Frequently Asked Questions(FAQ’s)
How Long Do You Bake Chops In The Oven At 350?
It may take 20 minutes or 40 minutes, depending on the thickness and bone density of the pork chops.
How Long Do You Roast Chops In The Oven At 375?
The cooking time will take around 30 to 45 minutes to make the tenderloin perfectly at 145°F.
How Do You Know When Tenderloin Is Done?
You can use a meat thermometer to check the internal heat inside the tenderloin. If it reaches 145°F, it is ready to complete.
Wrapping Up
This article has eventually got to the bottom of your question: How long to cook pork tenderloin in oven at 400? In conclusion, the cooking time for this recipe is around 25 minutes for perfect texture and flavor.
Remember not to let it overcook because it can be dry and tough to eat. Also, constantly check the internal temperature to ensure the tenderloin achieves its ideal doneness.
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