Pork Loin Gas Grill Recipe: Smoky Crust and Succulent Slices

Achieving smoky crust and succulent pork loin on a gas grill requires precise technique and patience. This method delivers professional results every time.

I developed this approach after years of competing in local BBQ circuits, refining the process to ensure perfect doneness and maximum flavor without a traditional smoker.

Ingredients for Pork Loin Gas Grill

Professional-grade ingredients for competition-worthy results on your home gas grill.

[recipe_ingredient_scaler]

The pork loin must be high-quality. Look for well-marbled, boneless cuts from a reputable butcher or Whole Foods. The fat cap should be trimmed to 1/4-inch thickness for even cooking. Diamond Crystal kosher salt is non-negotiable for consistent seasoning—its crystal structure adheres better than table salt. For the wood chips, hickory delivers the most authentic smoke flavor, but cherry or apple work too.

No smoked paprika? Chipotle powder at half the amount adds heat and smoke, but adjust to taste. Substitute fresh garlic and onion (minced) for the powders at a 3:1 ratio, but ensure they’re finely minced to prevent burning. The vinegar in the mop sauce can be swapped for white wine vinegar or rice vinegar—just avoid balsamic, as its sweetness throws off the balance.

Store the trimmed pork loin in its original packaging for up to 3 days in the fridge, or freeze for 6 months. Soak wood chips overnight if you’re prepping ahead. The dry rub can be mixed and stored in an airtight container for 1 month, though it’s best used within 2 weeks for maximum potency.

Step-by-Step Instructions for Pork Loin Gas Grill

Here is the proven method for achieving a perfectly smoked crust and juicy interior.

Step 1: Prepare the Dry Rub and Season the Pork

In a small bowl, combine the 1 tbsp kosher salt, 1 tbsp coarsely ground black pepper, 1 tbsp smoked paprika, 1 tbsp garlic powder, 1 tbsp onion powder, 1 tsp dried thyme, and 1 tsp dried rosemary. Rub the mixture between your fingers to release the aromatic oils.

Pat the 2.5 lb pork loin dry with paper towels, then coat it evenly with the 2 tbsp olive oil. Apply the dry rub generously over all surfaces, pressing it into the meat to ensure adhesion. Let the seasoned pork loin rest at room temperature for 30 minutes to allow the flavors to penetrate.

Step 2: Set Up the Gas Grill for Indirect Heat

Soak the 1 cup hickory wood chips in water for 30 minutes to prevent them from burning too quickly. Preheat your gas grill to 325°F, then turn off one or two burners to create an indirect heat zone. Place the soaked wood chips in a smoker box or a foil pouch with holes poked in it, and position it over the active burner.

Once the grill is preheated and you see thin, blue smoke emanating from the wood chips, you are ready to begin cooking. The goal is to maintain a steady 325°F throughout the process for even cooking.

Step 3: Smoke and Cook the Pork Loin

Place the pork loin on the grill grates over the indirect heat zone, fat-side up. Close the lid and let it cook undisturbed for 1 hour. During this time, combine the 2 tbsp apple cider vinegar and 0.5 cup water in a spray bottle and spritz the pork loin every 20-30 minutes to keep the surface moist.

After 1 hour, check the internal temperature with a meat thermometer. Continue cooking until the pork loin reaches an internal temperature of 145°F in the thickest part. This should take approximately 1.5 to 2 hours total, depending on your grill’s heat consistency.

Step 4: Rest and Serve

Once the pork loin reaches 145°F, transfer it to a cutting board. Add the 2 tbsp unsalted butter to the top of the pork loin and let it melt over the surface, basting it lightly with the rendered butter.

Tent the pork loin loosely with aluminum foil and let it rest for 10-15 minutes. This resting period allows the juices to redistribute throughout the meat, ensuring each slice is moist and flavorful. Slice against the grain into ½-inch thick pieces and serve immediately.

Common Mistakes When Making Perfect Results

Skipping the Rest

I’ve seen too many cooks ruin perfect pork by cutting too soon. Always let your loin rest for 10-15 minutes after grilling. This allows juices to redistribute—skip this and you’ll serve dry meat no matter how perfect your cook was. 💪

Uneven Heat Zones

Many gas grills have hot spots. If you don’t create a proper indirect heat zone by turning off burners, you’ll burn the outside before the inside cooks. I learned this the hard way at my first BBQ competition.

Ignoring Internal Temp

Never rely on time alone. A 2.5 lb pork loin can take 1.5-2 hours depending on your grill. Use a meat thermometer and pull at exactly 145°F internal temperature for perfect doneness.

Over-Smoking

Too much wood creates bitter flavors. Stick to 1 cup soaked hickory chips for this recipe. If you see thick white smoke, you’re using too much wood. Thin blue smoke is what you want.

Dry Surface Syndrome

Without spritzing, your pork can dry out during the long cook. Mix 2 tbsp apple cider vinegar with 0.5 cup water and spritz every 20-30 minutes. This keeps the surface moist and helps the rub adhere. 🔥

Neglecting Fat Side Up

Always place your pork loin fat-side up on the grill. This lets the fat baste the meat naturally as it renders. It’s a small detail that makes a big difference in moisture and flavor.

Frequently Asked Questions