How Long Should I Cook a 1.7 lb Pork Loin for Maximum Tenderness?

A tasty way to roast pork loin so that it is juicy in the middle and brown and crusty on the outside.

Awhile ago I posted my method for roasting pork perfectly. That pork roast recipe has gotten a lot of great feedback in the comment section. There are also a lot of questions there too. A question that comes up a lot is whether the same method can be used on pork loin or only on pork butt as the recipe says.

My answer is always no. Because pork loin is leaner than pork butt, the long way I cooked it would make the pork roasts very dry. I decided to try different ways to roast pork loin because I get asked about it a lot. This recipe for juicy oven-roasted pork loin is the best of the best.

You’ll also need an oven-safe rack to set the pork loin on with it roasts. If you don’t have one, a few ribs of celery will work. The idea is to allow the hot air in the oven to circulate under the roast. A casserole dish that’s bigger than the roast will work as a roasting pan. You’ll also need aluminum foil.

Pork loin can be an extremely juicy, flavorful and impressive cut of meat when cooked properly. However, with an improper cooking method, it can easily end up dry, tough and disappointing. If you’ve got a 1.7 lb pork loin roast in your refrigerator and aren’t sure how long to cook it, this article will provide the ideal timing and technique for wonderfully tender and moist results.

Determining the Correct Cooking Time

The most important factor in achieving tender, juicy pork loin is using the right internal temperature and cooking time per pound. For a 1.7 lb cut, here are the key guidelines:

  • Cook to an internal temperature of 145°F (63°C). This ensures the pork reaches the safe zone for consumption while still maintaining plenty of moisture and a slight pink color in the center.

  • Allow roughly 25-30 minutes per pound at 350°F (177°C). For a 1.7 lb roast, this equals a total cooking time of 42-51 minutes. The relatively low temperature and sufficient time allows the interior to gently cook without drying out.

  • Always let the roast rest before slicing Allow at least 5-10 minutes of resting time after removing the pork from the oven This allows the juices to redistribute evenly throughout the meat, Slicing too early can cause the juices to spill out,

Seasoning and Preparation

Properly preparing the pork loin prior to roasting can also impact its tenderness and flavor. Here are some tips:

  • Season generously with salt, pepper and spices. A simple blend of salt, pepper, garlic powder, onion powder, paprika and thyme really enhances the pork’s flavor. Rub it evenly all over the roast.

  • Sear before roasting. Get a nice brown crust by searing the roast in a skillet with oil for 1-2 minutes per side before transferring it to a roasting pan. This caramelization adds tons of flavor.

  • Place fat side up. Positioning the roast with the fat cap on top allows it to baste the meat while cooking, keeping it incredibly moist.

  • Brush with pan juices or marinade. Basting the pork loin every 20 minutes with pan drippings or a marinade injects additional moisture into the meat as it cooks.

Choosing the Right Pork Loin

Not all pork loins are created equal. To get the best results, look for:

  • Well-marbled meat. Opt for roasts with thin, broad streaks of white fat running through them. This intra-muscular fat ensures tender, flavorful meat when cooked.

  • Thick fat cap on top. A layer of fat at least 1/4 inch thick on the top of the roast will melt and baste the meat. A thin fat cap can lead to dryness.

  • Medium size. Target roasts around 2-3 lbs. Larger cuts may not cook evenly, while smaller ones can dry out faster. A 1.7 lb roast is perfect.

  • Uniform shape. Pick a roast with an even thickness so it cooks at the same rate throughout. Odd shapes can lead to over or undercooked areas.

Mastering the Perfect 1.7 lb Pork Loin

Now that you’re armed with the proper internal temperature, cook times, prep tips and pork selection advice, let’s walk through cooking a flawless 1.7 lb pork loin roast step-by-step:

  1. Bring the roast to room temperature. Take it out of the fridge at least 30 minutes before cooking. This helps it cook more quickly and evenly later.

  2. Season the roast all over. Coat it generously with a spice rub. Garlic powder, onion powder, salt, pepper and paprika are a tasty combo.

  3. Sear the roast. Get a nice brown crust by searing it in a hot skillet with oil 1-2 minutes per side.

  4. Place fat side up in a roasting pan. Position it with the fat cap on top to allow self-basting. Pour any drippings from searing into the bottom of the pan.

  5. Roast at 350°F until internal temperature reaches 145°F. For a 1.7 lb roast, this will take approximately 40-50 minutes depending on your oven.

  6. Brush with pan juices every 20 minutes. Use a basting brush to moisten the exterior of the roast while cooking.

  7. Let rest at least 5-10 minutes before slicing. This allows the juices to re-absorb for maximum tenderness and moistness.

  8. Slice against the grain and serve. Cut into 1/4 to 1/2 inch slices perpendicular to the grain. Pork loin should be slightly pink with clear juices running out.

Serving Up Your Succulent Pork Loin

Once perfectly cooked, your 1.7 lb pork loin can be served in endless ways. Here are some mouthwatering ideas:

  • Slice and serve with pan gravy or au jus for added moisture

  • Pair with sautéed apples and onions for a delightful sweet and savory combo

  • Pile slices on buns for tender pulled pork sandwiches

  • Dice and add to soups, stews or chili

  • Top with chimichurri or mojo sauce for a flavor punch

  • Slice and serve over creamy polenta or risotto

  • Toss with roasted veggies like Brussels sprouts, carrots and parsnips

With the right prep, cook time, temperature and resting, you can masterfully cook a 1.7 lb pork loin roast for incredibly tender, juicy and delicious results every time. Your guests will be begging for seconds of this impressive yet easy-to-make entrée. Give it a try today!

how long do i cook a 1 7 lb pork loin

What Is The Reverse Sear For Roasting Meat?

Like with the roasted pork butt, I use the final-sear method that I first learned from roasting prime rib according to Serious Eats’ instructions.

Basically, you put the roast into a moderate or low oven (I used 350°F for the pork loin). When the right temperature is reached (145°F for pork loin), you take it out and cover it with foil. Let it rest for 30 minutes. This lower temperature cooking and the rest time, keep the pork loin nice and juicy.

Finally, you heat the oven to 475°F and give the roast one last blast for 10 minutes. That extra heat really browns and crisps up the outside of the roast, giving it more flavor and texture, but it doesn’t go all the way through to dry out the meat we just made juicy. Then you carve it immediately and serve. No need to rest it again because the inside of the roast already had its resting time. It’s pretty cool, right? We’ll use this method to make pork loin that is both juicy and crusty, which isn’t always easy to do.

I’ve gotten a lot of questions about roasting pork loin in the comment section below. Here’s a summary of the most common questions with my answers.

Yes. Use a large roasting pan so that there’s space. In a large bowl, mix carrots and potatoes that have been cut into pieces about 1/2 inch thick with salt and pepper. Add just enough olive oil to coat the vegetables. Put the potatoes and carrots around the roast for the last 45 minutes that it’s in the 350°F oven. They should be in a single layer, not piled on top of each other. Take them out when you take the roast out to rest. You can keep the vegetables warm or let them rest. Then, put them back in the hot oven with the roast for one last blast of heat.

No. Different cuts of pork have different shapes and sizes, but more importantly, they have different levels of leanness. If you want to cook a large lean cut like a loin, you cook it differently than a small lean cut like a tenderloin. You also cook a large fattier cut like a pork butt differently. This recipe is specifically for the shape and leanness of pork loin. If you have pork butt or pork shoulder, please use this recipe. On the other hand, if you have pork tenderloin, which is different from pork loin, head over here.

Yes, so long as the loin fits in your air fryer. Here are the instructions for cooking a pork loin in the air fryer.

According to the National Pork Board, it is now safe to eat pork once it has reached 145°F. However, many people grew up in the days where pork needed to be cooked to 160°F. When they see slightly pink pork meat, which is what you get at 145°F, it bothers them. If you are bothered by the slight pinkness, cook yours to 160°F. If that doesn’t bother you and you want juicier pork, then cook it to 145°F.

The celery is just a rack to keep the meat off the ground so that air can flow under the roast and cook it more evenly. You can use carrots instead. Or you can use an oven-safe metal rack.

Once the pork is finished cooking, carve it and serve. If you aren’t eating the roast immediately, don’t carve it. Refrigerate it whole and then slice it once it is cold. With that method, you can get thinner slices because the roast is firmer and all of its juices have been reabsorbed. If you have sliced pork, put it in a container that won’t let air in or on a plate that’s been covered in plastic wrap. You can keep it in the fridge for up to 4 days. In a freezer bag, it will keep in the freezer for 2 months.

It’s easiest to reheat it in the microwave. Put pork slices on a plate. Add a few drops of water or stock. Cover loosely with plastic wrap or another microwave-safe cover. Microwave 40 seconds at a time until heated through. Alternatively, you can reheat a pan of slices in the oven. Put the slices in a slightly overlapping layer on a large pan. Drizzle with a bit of water or stock (1-2 drops per 4 slices). Cover with foil. Heat at 300°F for 20 minutes, or until heated through.

When you roast a pork loin, the juices that drip off of the meat don’t always come out in large amounts. Instead, you might only get a little drip, and if it hits the hot roasting pan, it can catch fire. If you were to deglaze that pan to make gravy later, the burned food would give it a bitter, burned taste. A little bit of broth or stock in the pan gives the drippings somewhere safe to fall. They’ll drip into the broth/stock and then won’t burn. The flavor that broth gives makes it better as juices for gravy later. Also, as the broth evaporates, it leaves some brownings on the sides of the roasting pan. Make sure to either mix those into the gravy or add more broth to get rid of the flavor. So, if you’re making gravy, then put some broth or stock in the bottom of your roasting pan. Half an inch will do. If you’re not making gravy, then the broth isn’t necessary.

I think this is because pork loin roasts are cylindrical. They’re essentially the same thickness no matter how much they weigh. The differences in weight come from how long the roast is. Six-pound pork loin roasts are the same size around, but eight-pound roasts are twice as long. For roasts, cooking times are based on how long it takes for the heat to reach the inside from the outside. Since the 8-pounder and the 4-pounder are the same distance from the sides to the middle, it won’t take much longer for the heat to reach the middle of the 8-pounder.

Even though they’re on the same pan, treat the two roasts as if they were different things in the oven. That is, calculate the cooking time for each one separately, and then do not add those times together. So, if one roast is 3 pounds, it will cook for 60-75 minutes. If the other is 4 pounds, it will cook for 80-95 minutes. Do not add those times together. Instead, you now know that the roasts will go in the oven together for 60 to 95 minutes. After about an hour, check on the smaller roast. After about eighty minutes, check on the bigger roast. When one reaches the desired temperature, take it out and let it start resting. It’s fine if one rests for longer than the other. Then they can both go back in at the same time for the high heat final sear.

When you cover a roast with foil or a lid, you are essentially wet-roasting it. That’s like braising. The meat steams. That’s great for some cuts of meat, especially pot roasts. However, if you want a nice browned and crunchy crust on your roast, you can’t cover it. It shouldn’t burn though. If you notice any over-browning, you can cover it with foil. Just make sure that you do not then cover it for the final blast in high heat. For the above recipe, the roast is NEVER covered when it is in the oven. It is only covered during the resting time in between its two visits to the oven.

There are so many side dishes that you can serve with pork. If you’re making the gravy, I highly suggest mashed potatoes, but Parmesan Roasted Potatoes are excellent as well. Add some color with green beans, Brussels sprouts, or a fresh salad.

Yes, it is totally safe to cook a pork loin straight from frozen. The only issue is that the timing isn’t going to be as straightforward. It typically takes 1. It takes 5 times longer to cook meat from frozen than from fresh, so each pound will take 30 to 37 minutes instead of 20 to 25 minutes. That being said, the time can change depending on the temperature of your freezer and the size and shape of the roast. My advice is to do the following. Cook it for about 28 minutes per pound and then start testing it with an instant read thermometer. Then, check it every 15 minutes (15-minute blocks, not minutes per pound) until it reaches the right temperature. The roast needs to get to at least 145°F (poked in a few places) to be safe. But see the section above about pork temperature in case you like yours more well done. An additional thing to note is about seasoning. It’s difficult to get seasoning to stick to a frozen roast. It’s best to let it cook for a while so that the outside has a chance to thaw. Then, add the spices and keep roasting it.

I hope that answers all of your questions about roasting pork loin. If not, please leave a question below. And if you make this recipe and love it, please tell me and everyone else who visits the site. Also, please give it five stars! Have a great day!

Video: How To Roast Pork Loin Perfectly

To start, you can brine the pork. Here are my steps and suggestions for How to Brine Pork Loin. Otherwise, start by preheating the oven to 350°F. Mix together 1/2 teaspoon black pepper, 1/2 teaspoon garlic powder, and 1/4 teaspoon salt.

how long do i cook a 1 7 lb pork loin

Sprinkle it all over the pork loin roast.

how long do i cook a 1 7 lb pork loin

Rub it all over until it’s coated.

how long do i cook a 1 7 lb pork loin

Put the roast on a rack in a roasting pan. If you don’t have a rack that fits in your roasting pan, you can use three celery stalks arranged in this way:

how long do i cook a 1 7 lb pork loin

Put the roast into the oven.

Roast until the internal temperature is at 130°F-150°F. That will take 18-28 minutes per pound at 350F. You should start checking it after 18 minutes per pound, and then every 10-15 minutes after that. Keep in mind that the temperature will have to be at least 145F by the end of this recipe for the pork to be safe. You will take it out at 130F if you want it to be that temperature. If, on the other hand, you don’t want any pink to show in your pork, you will want the oven temperature to be 160F at the end of the recipe, so take it out at 150F now. The resting and final cooking will bring the temperature up.

Tip: An instant read thermometer is the best way to make sure you have the perfect cook and are at a safe temperature.

how long do i cook a 1 7 lb pork loin

Cover roasting pan with foil and let rest for 30 minutes.

how long do i cook a 1 7 lb pork loin

Heat oven up to 475°F. Uncover roast and remove the thermometer. If there are any drippings in the pan, you can pour those out to make gravy (see below). You can also take the roast out of the pan, add some stock or broth, and stir it around to loosen up any juices. Then, pour that out to use as gravy.

Then, either clean the pan well or put the roast in a new pan that has been cleaned. Roast for another 10 minutes. Check the pork to make sure it’s at least 145F and the right temperature for you.

Note that the clean pan or wiping is needed mostly to help with clean up later. Any brown bits or liquid that were left in the pan from the first cooking round will stick to the pan when it hits high heat, making them tough to get off. Using a new pan, or wiping the pan well, will make clean up much easier.

Use those 10 minutes to make gravy, if desired. If the first roasting pan gave you nice roasting juices, you can use them to make my Pork Gravy recipe. If you didn’t get juices, then here is how to make gravy without drippings. Remove roast from oven, carve, and serve immediately.

how long do i cook a 1 7 lb pork loin

Pork Tenderloin Basics

FAQ

How long does it take to cook a 1.7 lb pork loin?

The meat should be at room temperature for best results. Place pork in roasting pan. Sprinkle the top of the roast with sage, rosemary, garlic, and salt and pepper. Bake for 50 minutes (25 minutes per lb).

How long do you cook a pork loin by weight?

Pre-heat oven to 325F (163C). Bake pork roast in the oven UNCOVERED for approximately 25-30 MINUTES *PER POUND* (55-66 MINUTES PER KILOGRAM) Or until internal temperature reaches 155F (68C), rested to a final 160F (71C).

Is it better to cook a pork tenderloin at 350 or 400?

Is it better to cook a pork loin at 350 or 400? Cooking a pork loin at 400°F will give a nice crust and cook it faster, reducing the risk of drying out. If using 350°F, cooking will take longer but be gentler, helping retain moisture.

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