How To Cook A Pork Loin On The Grill

ByLily

Grilling pork loin brings a smoky char to the outside while keeping the inside juicy and tender. If you want to know how to cook a pork loin on the grill, the process is simpler than you think. You just need the right temperature, a good rub, and a little patience.

Pork loin is lean, so it can dry out fast over high heat. The trick is cooking it over indirect heat and watching the internal temperature closely. This guide walks you through every step, from picking the meat to resting it before slicing.

What You Need Before You Start

Gather your tools and ingredients first so the cook goes smooth. Nothing is worse than running back inside mid-grill.

  • A pork loin roast, boneless or bone-in, about 2 to 4 pounds
  • Olive oil or a light cooking oil
  • Dry rub or simple salt and black pepper
  • Instant-read meat thermometer
  • Tongs and a cutting board
  • Aluminum foil for resting
  • A gas or charcoal grill with a two-zone setup

If your pork loin has a thick fat cap, score it lightly with a knife. This helps the fat render and keeps the meat from curling.

How To Cook A Pork Loin On The Grill

Follow these steps in order. Each one matters for a juicy result.

Step 1: Prep And Season The Pork Loin

Pat the pork loin dry with paper towels. Moisture on the surface steams the meat instead of searing it.

Rub a thin layer of oil all over the loin. Then apply your seasoning generously on all sides. A simple mix of salt, pepper, garlic powder, and paprika works great.

Let the seasoned loin sit at room temperature for about 30 minutes before grilling. Cold meat cooks unevenly.

Step 2: Set Up Your Grill For Indirect Heat

You want two zones: one hot side and one cooler side. This is the key to cooking pork loin without burning it.

  1. For a gas grill, turn one burner to high and leave the other off.
  2. For a charcoal grill, pile hot coals on one half of the grate.
  3. Close the lid and let the grill reach about 400°F on the hot side.
  4. Clean and oil the grates so the meat does not stick.

The cool side should sit around 300°F to 325°F. That is where the loin will do most of its cooking.

Step 3: Sear The Loin Over High Heat

Place the pork loin directly over the hot zone. Let it sear for 2 to 3 minutes per side.

You want a nice brown crust, not a burnt one. Watch for flare-ups and move the meat if flames rise.

Searing locks in flavor and gives that grilled char you expect from good barbecue.

Step 4: Move To Indirect Heat And Close The Lid

After searing all sides, slide the loin to the cooler side of the grill. Close the lid and let it cook.

Keep the grill temperature between 300°F and 350°F. Check the coals or burners every 15 minutes or so.

Do not flip the loin constantly. One or two turns during this phase is enough.

Step 5: Check The Internal Temperature

This is the most important step. Pork loin is safe and juicy at 145°F.

  • Insert the thermometer into the thickest part, away from bone or fat.
  • Start checking around the 30 minute mark.
  • A 3-pound loin usually takes 45 to 60 minutes total.

Pull the loin off the grill when it reads 140°F to 145°F. The temperature will rise a few degrees as it rests.

Step 6: Rest The Meat Before Slicing

Move the pork loin to a cutting board and tent it loosely with foil. Let it rest for 10 to 15 minutes.

Resting lets the juices settle back into the meat. If you slice too soon, those juices run out and the loin turns dry.

After resting, slice against the grain into medallions about half an inch thick. This gives you tender bites every time.

Tips For A Juicy Pork Loin Every Time

Small habits make a big difference. Keep these in mind on your next cook.

  • Brine the loin for 2 to 4 hours for extra moisture.
  • Do not trim all the fat off. Some fat means more flavor.
  • Use a thermometer instead of guessing by time.
  • Let the meat rest before you cut into it.
  • Avoid opening the lid too often, since heat escapes fast.

If you like a bit of sweetness, brush on a glaze during the last 10 minutes. Honey, maple, or a fruit jam all work well. Just watch it closely because sugar burns quick.

Common Mistakes To Avoid

Most dry pork loins come from a few easy-to-fix errors.

  1. Cooking over direct high heat the whole time.
  2. Skipping the rest period after grilling.
  3. Not using a meat thermometer.
  4. Slicing with the grain instead of against it.
  5. Starting with cold meat straight from the fridge.

Fix these and your pork loin will come out tender and full of flavor.

Serving Ideas For Grilled Pork Loin

Grilled pork loin pairs with almost anything. Try these sides for a complete meal.

  • Grilled vegetables like zucchini, peppers, and onions
  • Roasted potatoes or a warm potato salad
  • Fresh coleslaw or a crisp green salad
  • Corn on the cob with butter
  • Crusty bread to soak up the juices

Leftovers keep in the fridge for 3 to 4 days. Slice them thin and use them in sandwiches, tacos, or stir-fries.

Now you know how to cook a pork loin on the grill with confidence. Grab your seasonings, fire up the coals, and enjoy a juicy, smoky roast that feeds a crowd.

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