Gas grills offer precise temperature control, which is perfect for a lean pork tenderloin. The trick is to sear over high heat, then finish over indirect flames. If you want to know how to cook a pork tenderloin on a gas grill without drying it out, you have come to the right place.
Pork tenderloin is a lean cut that cooks fast. It is easy to mess up if you are not careful. But with a gas grill, you have total control. You can get a beautiful sear and a juicy interior every time.
This guide will walk you through every step. From picking the right tenderloin to resting it after grilling. You will learn the exact method to get perfect results.
Why A Gas Grill Works Best For Pork Tenderloin
Gas grills heat up fast and stay steady. This is key for a lean cut like pork tenderloin. You need high heat for a crust, then lower heat to cook the inside without burning the outside.
Charcoal grills can work too, but they are harder to control. With gas, you just turn a knob. It is that simple.
Another reason is the indirect cooking zone. Most gas grills have burners you can turn off on one side. This creates a cool spot for gentle cooking.
What You Will Need
- One pork tenderloin (about 1 to 1.5 pounds)
- Olive oil or vegetable oil
- Salt and black pepper
- Your favorite dry rub or marinade (optional)
- Instant-read meat thermometer
- Tongs
- Aluminum foil
Do not skip the thermometer. It is the only way to know when the pork is done. Guessing leads to dry meat.
How To Cook A Pork Tenderloin On A Gas Grill
Now we get to the main event. Follow these steps exactly, and you will have a perfect tenderloin every time.
Step 1: Prepare The Pork Tenderloin
First, remove the silver skin. This is the tough, silvery membrane on the outside of the tenderloin. Use a sharp knife to slide under it and cut it away. It does not soften during cooking, so it must go.
Next, trim any excess fat. A little fat is fine, but too much can cause flare-ups. Pat the tenderloin dry with paper towels. Dry meat sears better.
Season generously. Use salt and pepper at a minimum. You can also add garlic powder, paprika, or a premade rub. Rub the oil all over the meat first, then apply the seasonings. Let it sit at room temperature for 20 to 30 minutes. This helps it cook evenly.
Step 2: Preheat Your Gas Grill
Turn all burners to high. Close the lid. Let the grill heat up for 10 to 15 minutes. You want the temperature to reach about 450°F to 500°F. This is the searing zone.
While the grill heats, clean the grates with a wire brush. Oil the grates by dipping a folded paper towel in oil and using tongs to rub it on the grates. This prevents sticking.
Step 3: Sear The Tenderloin Over Direct Heat
Place the tenderloin directly over the hot burners. Close the lid. Sear for 2 to 3 minutes per side. You want a deep brown crust on all sides. Use tongs to turn it carefully.
Do not move the meat around while it sears. Let it sit so the crust forms. If it sticks, it is not ready to flip. Give it another 30 seconds.
Total searing time should be about 8 to 12 minutes, depending on thickness. You are not cooking it through here. Just building flavor.
Step 4: Move To Indirect Heat
After searing, turn off the burner(s) on one side of the grill. Move the tenderloin to the cool side. If you have a three-burner grill, turn off the middle burner and keep the outer ones on low. For a two-burner grill, turn one off and leave the other on medium-low.
Close the lid. The internal temperature of the grill should drop to around 350°F to 375°F. If it is too hot, adjust the remaining burner(s) down.
Cook the tenderloin over indirect heat until it reaches an internal temperature of 140°F to 145°F. This usually takes 10 to 15 minutes, but check with your thermometer.
Insert the thermometer into the thickest part of the meat. Do not touch bone or the grill grate.
Step 5: Rest The Meat
Once the pork hits 140°F to 145°F, remove it from the grill. Place it on a cutting board. Tent loosely with aluminum foil. Let it rest for 5 to 10 minutes.
Resting is not optional. The juices need time to redistribute. If you cut it right away, all the juice will run out. The internal temperature will also rise a few degrees during resting, reaching the safe zone of 145°F.
Step 6: Slice And Serve
After resting, slice the tenderloin against the grain. This means cutting perpendicular to the muscle fibers. It makes the meat more tender.
Slice into medallions about 1/2 to 3/4 inch thick. Serve immediately. Leftovers can be stored in the fridge for up to 3 days.
Tips For The Best Grilled Pork Tenderloin
Use A Meat Thermometer
This is the most important tool. Pork tenderloin is lean and dries out fast. Cooking by time alone is risky. A thermometer takes the guesswork out.
Digital instant-read thermometers are cheap and accurate. Get one if you do not have one.
Do Not Overcook
Pork can be safely eaten at 145°F. That is medium-rare to medium. It will be slightly pink in the center. That is fine. Overcooking to 160°F or higher will make it dry and tough.
Remember, the temperature will rise about 5°F during resting. So pull it off at 140°F to 145°F.
Marinate Or Brine For Extra Flavor
A simple marinade of olive oil, garlic, herbs, and citrus works great. Marinate for 30 minutes to 2 hours. Do not go longer, or the acid can break down the meat too much.
Brining is another option. A quick brine of salt and sugar in water for 30 minutes adds moisture and flavor. Rinse and dry before seasoning.
Let The Meat Come To Room Temperature
Cold meat straight from the fridge cooks unevenly. The outside can burn before the inside is done. Let it sit out for 20 to 30 minutes before grilling. This is safe for pork as long as you do not leave it out longer than an hour.
Common Mistakes To Avoid
- Not trimming the silver skin. It stays tough and chewy.
- Skipping the rest time. The meat will be dry.
- Using too high heat for the whole cook. The outside burns.
- Not oiling the grates. The meat will stick.
- Cutting into the meat to check doneness. Use a thermometer.
Flavor Variations
Herb And Garlic Crust
Mix minced garlic, rosemary, thyme, and olive oil. Rub all over the tenderloin before grilling. The herbs will char slightly and add a wonderful aroma.
Spicy Chipotle Rub
Combine chipotle powder, cumin, brown sugar, and salt. This gives a smoky, sweet, and spicy crust. Great with a side of grilled corn.
Honey Mustard Glaze
Mix equal parts honey and Dijon mustard. Brush on during the last 5 minutes of cooking. The sugar will caramelize, but watch it so it does not burn.
What To Serve With Grilled Pork Tenderloin
This dish goes with almost anything. Here are some ideas:
- Grilled vegetables like asparagus, bell peppers, or zucchini
- A fresh green salad with vinaigrette
- Roasted potatoes or sweet potatoes
- Rice pilaf or quinoa
- Apple sauce or a fruit chutney
The mild flavor of pork pairs well with both savory and sweet sides.
Frequently Asked Questions
How Long Does It Take To Cook Pork Tenderloin On A Gas Grill?
Total time is about 20 to 30 minutes. This includes 8 to 12 minutes for searing and 10 to 15 minutes for indirect cooking. Resting adds another 5 to 10 minutes. Always use a thermometer to confirm doneness.
Can I Cook Pork Tenderloin From Frozen On A Gas Grill?
It is not recommended. Frozen meat cooks unevenly and the outside will burn before the inside thaws. Thaw in the refrigerator overnight for best results.
What Temperature Should Pork Tenderloin Be When Done?
The USDA recommends 145°F. At this temperature, the meat is safe and still juicy. It may have a slight pink blush, which is normal.
Should I Wrap Pork Tenderloin In Foil On The Grill?
Not usually. Foil can trap steam and prevent a good crust. Use foil only if you are adding a glaze and want to prevent burning. Otherwise, leave it unwrapped.
How Do I Keep Pork Tenderloin From Drying Out On The Grill?
Use a two-zone fire. Sear quickly over high heat, then move to indirect heat to finish. Do not overcook. Use a thermometer and rest the meat before slicing.
Final Thoughts
Learning how to cook a pork tenderloin on a gas grill is a skill you will use again and again. It is fast, easy, and impressive. The key is controlling the heat and not overcooking.
With a gas grill, you have the power to sear and then gently cook. Follow the steps here, and you will get a tender, juicy tenderloin with a beautiful crust. No more dry pork.
Fire up your grill, grab a tenderloin, and give it a try. You will be glad you did.