Cooking the Perfect Pork Tenderloin: A Guide to Oven Roasting at 350°F

Pork tenderloin is a lean and delicious cut of meat that can be cooked in a variety of ways. One of the most popular methods is oven roasting, which allows for even cooking and a crispy exterior. But how long should you cook pork tenderloin at 350°F? The answer depends on several factors, including the size and thickness of the tenderloin, as well as your desired level of doneness.

Understanding Pork Tenderloin

Before we dive into cooking times, it’s essential to understand the anatomy of a pork tenderloin. A tenderloin is a long, narrow cut of meat that comes from the loin section of the pig. It is characterized by its lean texture and mild flavor, making it a popular choice for health-conscious cooks.

Pork tenderloins can vary in size, but they are typically around 1-2 pounds and 10-12 inches long. They can be cooked whole or sliced into medallions, depending on your desired presentation.

Choosing the Right Pork Tenderloin

When selecting a pork tenderloin, look for one that is firm to the touch and has a uniform color. Avoid tenderloins with visible fat or connective tissue, as these can make the meat tough and chewy.

It’s also essential to choose a tenderloin that is the right size for your needs. A larger tenderloin may be more impressive, but it can be challenging to cook evenly. A smaller tenderloin, on the other hand, may be more manageable, but it can cook too quickly.

Cooking Pork Tenderloin at 350°F

Now that we’ve covered the basics of pork tenderloin, let’s talk about cooking it at 350°F. This temperature is ideal for oven roasting, as it allows for even cooking and a crispy exterior.

To cook pork tenderloin at 350°F, preheat your oven to 350°F (180°C). While the oven is heating up, season the tenderloin with your desired herbs and spices. You can use a dry rub or a marinade, depending on your preference.

Once the oven is hot, place the tenderloin on a rimmed baking sheet or a roasting pan. You can add some aromatics like onions, carrots, and celery to the pan for added flavor.

Cooking Times for Pork Tenderloin

The cooking time for pork tenderloin at 350°F will depend on the size and thickness of the meat. Here are some general guidelines:

  • For a 1-pound tenderloin, cook for 20-25 minutes per pound, or until the internal temperature reaches 145°F (63°C).
  • For a 1.5-pound tenderloin, cook for 25-30 minutes per pound, or until the internal temperature reaches 145°F (63°C).
  • For a 2-pound tenderloin, cook for 30-35 minutes per pound, or until the internal temperature reaches 145°F (63°C).

It’s essential to use a meat thermometer to ensure the tenderloin is cooked to a safe internal temperature. The thermometer should be inserted into the thickest part of the meat, avoiding any fat or bone.

Internal Temperature Guidelines

Here are some internal temperature guidelines for pork tenderloin:

| Internal Temperature | Level of Doneness |
| — | — |
| 145°F (63°C) | Medium-rare |
| 150°F (66°C) | Medium |
| 155°F (68°C) | Medium-well |
| 160°F (71°C) | Well-done |

Keep in mind that the internal temperature will continue to rise after the tenderloin is removed from the oven. This is known as carryover cooking, and it can add an extra 5-10°F (3-6°C) to the internal temperature.

Tips for Cooking Pork Tenderloin

Here are some tips for cooking pork tenderloin at 350°F:

  • Use a meat thermometer to ensure the tenderloin is cooked to a safe internal temperature.
  • Don’t overcrowd the pan, as this can prevent even cooking.
  • Use a rimmed baking sheet or a roasting pan to catch any juices or drippings.
  • Tent the tenderloin with foil if it starts to brown too quickly.
  • Let the tenderloin rest for 10-15 minutes before slicing, as this allows the juices to redistribute.

Common Mistakes to Avoid

Here are some common mistakes to avoid when cooking pork tenderloin:

  • Overcooking the tenderloin, which can make it dry and tough.
  • Undercooking the tenderloin, which can make it pink and raw in the center.
  • Not using a meat thermometer, which can lead to foodborne illness.
  • Not letting the tenderloin rest, which can cause the juices to run out of the meat.

Conclusion

Cooking pork tenderloin at 350°F is a simple and delicious way to prepare this lean cut of meat. By following the guidelines outlined in this article, you can achieve a perfectly cooked tenderloin with a crispy exterior and a juicy interior. Remember to use a meat thermometer, don’t overcrowd the pan, and let the tenderloin rest before slicing. With these tips and a little practice, you’ll be a pro at cooking pork tenderloin in no time.

Pork Tenderloin SizeCooking TimeInternal Temperature
1 pound20-25 minutes per pound145°F (63°C)
1.5 pounds25-30 minutes per pound145°F (63°C)
2 pounds30-35 minutes per pound145°F (63°C)

By following these guidelines and tips, you’ll be able to cook a delicious and safe pork tenderloin that’s sure to impress your family and friends.

What is the ideal internal temperature for a cooked pork tenderloin?

The ideal internal temperature for a cooked pork tenderloin is 145°F (63°C). It’s essential to use a meat thermometer to ensure the tenderloin reaches this temperature, as it may not be visually apparent. Insert the thermometer into the thickest part of the meat, avoiding any fat or bone.

Reaching an internal temperature of 145°F (63°C) ensures that the pork tenderloin is cooked to a safe temperature, reducing the risk of foodborne illness. Additionally, cooking the tenderloin to this temperature helps to achieve a tender and juicy texture, making it more enjoyable to eat.

How do I prepare a pork tenderloin for oven roasting?

To prepare a pork tenderloin for oven roasting, start by rinsing the tenderloin under cold water and patting it dry with paper towels. Remove any excess fat or silver skin, if present. Next, season the tenderloin with your desired herbs and spices, making sure to coat it evenly.

You can also rub the tenderloin with a mixture of olive oil, garlic, and herbs for added flavor. Let the tenderloin sit at room temperature for about 30 minutes before roasting to ensure even cooking. This step helps the tenderloin cook more consistently and prevents it from cooking too quickly on the outside.

What is the recommended cooking time for a pork tenderloin at 350°F?

The recommended cooking time for a pork tenderloin at 350°F (175°C) varies depending on the size and thickness of the tenderloin. A general guideline is to cook the tenderloin for 20-25 minutes per pound. For a 1-1.5 pound (0.5-0.7 kg) tenderloin, cook for 20-30 minutes, while a 1.5-2 pound (0.7-1 kg) tenderloin may require 30-40 minutes.

It’s essential to use a meat thermometer to check the internal temperature, as the cooking time may vary. Keep an eye on the tenderloin during the last 10-15 minutes of cooking, as it can quickly go from undercooked to overcooked.

Should I cover the pork tenderloin while it’s roasting in the oven?

It’s generally recommended to roast the pork tenderloin uncovered in the oven. This allows the tenderloin to brown and crisp on the outside, creating a flavorful crust. Covering the tenderloin can prevent it from browning and may result in a less flavorful dish.

However, if you’re concerned about the tenderloin drying out, you can cover it with foil for the first 20-30 minutes of cooking. Remove the foil for the remaining cooking time to allow the tenderloin to brown and crisp.

Can I add vegetables to the roasting pan with the pork tenderloin?

Yes, you can add vegetables to the roasting pan with the pork tenderloin. In fact, roasting vegetables alongside the tenderloin can add flavor and texture to the dish. Choose vegetables that roast well, such as Brussels sprouts, carrots, and sweet potatoes.

Cut the vegetables into bite-sized pieces and toss them with olive oil, salt, and pepper. Spread the vegetables around the tenderloin in the roasting pan, making sure not to overcrowd the pan. This allows for even cooking and prevents the vegetables from steaming instead of roasting.

How do I let the pork tenderloin rest after cooking?

After cooking the pork tenderloin, remove it from the oven and let it rest for 5-10 minutes. This allows the juices to redistribute, making the tenderloin more tender and juicy. To let the tenderloin rest, place it on a cutting board or plate and cover it with foil.

During the resting time, the tenderloin will retain its heat, and the juices will redistribute, making it more flavorful and tender. After the resting time, slice the tenderloin against the grain and serve.

Can I cook a pork tenderloin from frozen in the oven?

While it’s possible to cook a pork tenderloin from frozen in the oven, it’s not recommended. Cooking a frozen tenderloin can result in uneven cooking and a less tender texture. Additionally, there’s a risk of foodborne illness if the tenderloin is not cooked to a safe internal temperature.

If you need to cook a frozen pork tenderloin, it’s best to thaw it first in the refrigerator or under cold running water. Then, follow the recommended cooking time and temperature for a thawed tenderloin.

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