How Long To Cook 5 Pound Turkey Breast

ByLily

Cooking a 5 pound turkey breast to the right temperature requires accounting for its thickness, not just its weight. So when people ask how long to cook 5 pound turkey breast, the honest answer is that it depends on whether you bought boneless or bone-in.

Most boneless 5 pound turkey breasts finish in about 1 hour 30 minutes to 2 hours at 325°F. Bone-in takes closer to 2 hours 15 minutes to 2 hours 45 minutes. The real target is internal temperature, not the clock.

How Long To Cook 5 Pound Turkey Breast

Below is a quick reference you can follow. Times assume the breast goes into a preheated 325°F oven and is not stuffed.

  • Boneless, 5 lbs: 1 hour 30 minutes to 2 hours
  • Bone-in, 5 lbs: 2 hours 15 minutes to 2 hours 45 minutes
  • Cook to 165°F in the thickest part
  • Rest for 15 to 20 minutes before slicing

Start checking with a thermometer about 30 minutes before the low end of your time range. Ovens run hot or cold, and a 5 pound breast is thick enough that the center lags behind the surface.

Why Thickness Matters More Than Weight

A 5 pound breast can be long and flat or short and plump. The plump one takes longer because heat has to travel further to the middle.

Weight tells you how much meat there is. Thickness tells you how long the heat takes to reach the center. That is why two 5 pound breasts can differ by 30 minutes or more.

Boneless Vs Bone-In Times

Bone conducts heat, but it also insulates part of the meat. In practice, bone-in breasts take longer overall because they are usually thicker and the bone slows heat on one side.

Boneless 5 Pound Breast

  • 325°F oven, uncovered
  • About 18 to 22 minutes per pound
  • Total: 1 hour 30 minutes to 2 hours

Bone-In 5 Pound Breast

  • 325°F oven, uncovered
  • About 25 to 32 minutes per pound
  • Total: 2 hours 15 minutes to 2 hours 45 minutes

Step-By-Step Cooking Method

  1. Heat the oven to 325°F. Place a rack in the lower middle position.
  2. Pat the breast dry with paper towels. Dry skin browns better.
  3. Rub with oil or soft butter. Season with salt, pepper, and any herbs you like.
  4. Set it skin side up in a roasting pan or on a rimmed baking sheet with a rack.
  5. Insert an oven-safe thermometer into the thickest part, away from bone.
  6. Roast until the center hits 165°F. Begin checking at the 1 hour 20 minute mark for boneless.
  7. Pull it out and tent loosely with foil. Let it rest 15 to 20 minutes.
  8. Carve against the grain into half-inch slices.

If the skin is browning too fast, lay a piece of foil over the top. Do not wrap it tight, or the skin turns soft.

Temperature Guide For Doneness

  • 160°F: slightly under, carryover will finish it
  • 165°F: fully cooked, juicy if rested
  • 170°F and up: dry and stringy

Carryover cooking adds about 5 degrees while the meat rests. So pulling at 160°F is fine if you tent it and wait. Pulling at 165°F is the safe, simple choice.

Common Mistakes To Avoid

  • Going by time alone. Always use a thermometer.
  • Opening the oven every 10 minutes. It drops the heat and adds time.
  • Skipping the rest. Slicing too soon lets the juices run out.
  • Cooking at 400°F to save time. The outside dries before the center cooks.
  • Trusting the pop-up timer. They often go off late or early.

Tips For A Juicy 5 Pound Turkey Breast

  • Brine it for 4 to 12 hours for extra moisture.
  • Loosen the skin and put butter or herbs underneath.
  • Add a cup of broth to the pan to keep the drippings from burning.
  • Cover just the top with foil if it browns early.
  • Let it rest before you even think about slicing.

If you brine, skip any extra salt in your rub. Otherwise the meat gets salty fast.

Can You Cook It From Frozen

Yes, but add roughly 50 percent more time. A frozen 5 pound boneless breast can take 2 hours 15 minutes to 3 hours at 325°F. The outer layer cooks while the center stays cold, so the meat near the surface tends to dry out. Thawing in the fridge overnight is the better move.

How To Store And Reheat Leftovers

Cool the meat within two hours of cooking. Store slices in a sealed container in the fridge for up to 4 days.

To reheat, add a splash of broth, cover, and warm at 300°F until it reaches 140°F. Microwaving works but dries the edges quickly, so keep the power low.

Quick Recap

  • Boneless 5 lb: 1 hour 30 minutes to 2 hours at 325°F
  • Bone-in 5 lb: 2 hours 15 minutes to 2 hours 45 minutes at 325°F
  • Target temp: 165°F
  • Rest: 15 to 20 minutes

Use these numbers as a starting point, then let your thermometer make the final call. That is the only way to get a 5 pound turkey breast that is cooked through and still juicy.

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