A 3lb pork loin roast is the ideal size for feeding a family or gathering of friends When roasted in the oven, the pork loin becomes incredibly tender and juicy with a delicious caramelized exterior crust But nailing the cook time is essential for pork loin success. Undercook it and the meat will be dry and tough. Cook it too long and you’ll end up with an overcooked, stringy roast.
So how long should you cook a 3lb pork loin roast in the oven? Follow this complete guide for tips, timing, and techniques to help you roast a 3lb pork loin to juicy, melt-in-your-mouth perfection every time
How Long to Cook a 3lb Pork Loin Roast in the Oven
For a 3lb boneless pork loin roast, the recommended cook time is:
- 75 minutes at 350°F
This allows about 25 minutes per pound, which is the general timing guideline for roasting pork loin
However, roasts can vary a bit in shape and thickness, so it’s always best to verify doneness with a meat thermometer. The thermometer should read 145°F when the pork is ready.
Adjusting Cook Time for a 3lb Pork Loin
You may need to adjust the cook time slightly based on your specific roast:
-
If your 3lb roast is extra thick or wide, add 5 minutes.
-
If your 3lb roast is longer and narrower, deduct 5 minutes.
-
If the roast is bone-in, it may cook 5-10 minutes faster since the bone conducts heat.
-
Brining the roast adds moisture and tenderness so you don’t need to cook it as long. Reduce time by 5 minutes.
-
Cooking from frozen will require adding about 15 extra minutes.
Always rely on a meat thermometer for the best indication of doneness. Check the temp in a few places to account for any uneven cooking.
Steps for Roasting a 3lb Pork Loin
Follow these simple steps for roasting pork loin roast perfection:
-
Prep the roast. Trim excess fat and rub the outside with olive oil, salt, pepper, garlic, and herbs.
-
Preheat the oven to 350°F to ensure it’s fully heated when the pork goes in.
-
Sear the roast (optional). Brown the outside in a skillet for added flavor.
-
Roast at 350°F for about 25 minutes per pound, until the thermometer reads 140-145°F.
-
Rest the roast for 10-15 minutes before slicing to allow juices to redistribute.
![Roast Pork Loin][]<p class=”caption”>A perfectly roasted pork loin. Image via Simply Delicious Food</p>
How to Get a Tender, Juicy Pork Loin Roast
Follow these tips for the most tender, juicy roasted pork loin every time:
- Choose a roast with a thin outer fat cap to baste the meat and prevent drying.
- Allow the roast to sit at room temperature for 30 minutes before roasting.
- Season generously with salt, pepper, garlic, herbs, and spices for flavor.
- Searing the roast adds caramelization and enhances flavor (highly recommended!)
- Roast at a lower 300-325°F if you have time for extra tender results.
- Always let roasted meat rest before slicing to retain moisture.
- Slice pork loin roast against the grain for maximum tenderness.
- Add broth, wine or apples to the baking pan for extra moisture and flavor.
- Brining pork in a saltwater solution boosts flavor and juiciness.
- Use a meat thermometer to avoid overcooking. Take it out at 140-145°F.
Common Questions for Roasting Pork Loin
Should I cook pork loin at 350 or 400°F?
350°F is ideal. The moderate temperature evenly cooks the meat without drying it out. 400°F can result in a drier exterior.
Do I need to cover the pork loin while roasting?
Covering isn’t necessary. Leaving it uncovered promotes browning. Add broth to the pan to prevent drying out.
Can I stuff a pork loin roast?
Yes, stuffing adds great flavor. Opt for simple bread-based stuffing seasoned with herbs and garlic. Avoid dense, moist stuffing which may not fully cook.
Is pork loin done at 145°F?
Yes, 145°F is the recommended safe temperature for pork loin. The meat will continue cooking a bit more as it rests.
Should I tent pork loin with foil while resting?
Tenting loosely with foil after roasting keeps the meat warm. But don’t fully wrap it or the roast may steam and lose its crust.
Can I roast pork loin from frozen?
Yes, just add about 15 extra minutes to compensate for the frozen center. Thaw first for the most even cooking results.
In Summary
For a foolproof 3lb pork loin roast, roast at 350°F for about 25 minutes per pound, then use a meat thermometer to check for 145°F doneness. Rest the roast for 10-15 minutes before slicing and serve it with your favorite sides and pan sauces. With the proper timing and temperature, you’ll achieve a tender, juicy pork loin roast your family and friends will love.