A 1- to 1¼-pound pork tenderloin cooks on a gas grill in about 20–22 minutes, depending on its thickness and your grill. Sear it over direct heat, finish it over indirect heat, and use a thermometer so the center reaches the safe temperature without drying out.
Ingredients
- 1 pork tenderloin, about 1¼ pounds (570 g), silver skin removed
- 1 tablespoon (15 ml) neutral oil, such as canola or avocado oil
- ¾ teaspoon fine salt (about 4.5 g)
- ½ teaspoon freshly ground black pepper (about 1 g)
- 1 teaspoon paprika (about 2 g), sweet or smoked
- ½ teaspoon garlic powder (about 1.5 g)
- 1 tablespoon chopped fresh parsley (about 4 g), optional, for serving
- 1 lemon, cut into wedges (about 100 g), optional, for serving
Instructions
- Trim and season the pork. Pat the tenderloin dry with paper towels. If a thin, shiny strip of silver skin remains, slide a sharp knife just beneath it and remove it; this membrane can tighten as it cooks. Leave the thin layer of fat in place. Rub the pork all over with the oil. Mix the salt, pepper, paprika, and garlic powder, then coat the tenderloin evenly. Set it aside while the grill heats. This short rest is only for seasoning and is included in the prep time; the recipe does not require a long marinade.
- Set up the gas grill for two-zone cooking. Preheat the grill with the lid closed for about 10–15 minutes, aiming for a surface temperature around 400–450°F (204–232°C). For a three- or four-burner grill, leave one burner on medium-high and turn off the burner or burners on the other side. For a two-burner grill, light one side and leave the other off. The lit side is for searing; the unlit side provides gentler heat to finish the pork. Clean the grates and lightly oil them using an oiled paper towel held with tongs. Do not pour oil onto the grill.
- Sear over direct heat. Put the tenderloin on the hot side of the grill. Close the lid and sear for about 2 minutes, then turn it with tongs. Continue turning every 2 minutes to brown the remaining sides, for roughly 8 minutes total. The tenderloin is rounded, so use the tongs to hold it briefly against a side that needs color. A few dark grill marks are fine, but move the pork sooner if the seasoning is smoking heavily or the surface is charring.
- Finish over indirect heat. Move the tenderloin to the unlit side and close the lid. Grill for about 12–14 minutes, turning once halfway through. Keep the lid closed between checks so the grill holds its heat. The total cooking time is usually about 20–22 minutes, including searing, but treat the clock as a guide rather than a doneness test. A thinner tenderloin may finish earlier, while a thicker one or a grill running cool may take longer.
- Check the center with a thermometer. Insert an instant-read thermometer into the thickest part of the tenderloin from the side, aiming the probe toward the center and avoiding the grates. The USDA FSIS safe minimum for a whole cut of pork is 145°F (63°C), followed by a 3-minute rest. If it has not reached 145°F (63°C), close the lid and continue cooking over indirect heat, checking again after a few minutes. Do not rely on color or clear juices alone to determine safety.
- Rest, slice, and serve. Transfer the pork to a clean cutting board and rest it for at least 3 minutes before slicing. The three-minute rest is part of the total time in the recipe facts. Slice across the grain into rounds about ½ inch (1.3 cm) thick. Scatter with parsley if using and serve with lemon wedges. Use a clean platter and utensils rather than anything that touched the raw pork.
Tips
- Check the shape as well as the weight. Tenderloins vary in thickness, and a narrow tail cooks faster than the thick end. If the tail is very thin, fold it under and secure it with a toothpick, or tuck it under itself while grilling so it is less likely to dry out. Remove any toothpick before serving.
- Use a thermometer, not a fixed minute count. Gas grills differ in heat, wind can affect the temperature, and opening the lid repeatedly slows cooking. Start checking around 18 minutes total, then check at short intervals until the thickest part reaches 145°F (63°C). A thermometer gives a more dependable result than cutting into the meat to look at the center.
- Adjust the spice without changing the method. Smoked paprika gives a campfire-like note, while sweet paprika keeps the seasoning mild. If you do not have garlic powder, use 1 small finely grated garlic clove (about 3 g), mixed with the oil; fresh garlic can brown faster, so watch the sear closely. You can also swap the neutral oil for olive oil, though extra-virgin olive oil may smoke more readily over high heat.
- Prevent sticking and flare-ups. Dry the meat and clean the grates before cooking. If dripping fat causes flames, move the pork to the indirect side until they subside rather than spraying water into the grill. Do not press down on the tenderloin; pressing will not make it cook faster and can push out juices.
Serving Suggestions
Serve the sliced tenderloin warm with grilled vegetables, corn on the cob, or a green salad. For a more filling plate, add roasted potatoes, rice, couscous, or a soft roll to catch the juices. A tangy slaw or a simple salad dressed with lemon balances the pork’s savory, lightly smoky seasoning. Put lemon wedges on the table so everyone can add as much brightness as they like.
If you want a sauce, offer it on the side instead of pouring it over the whole tenderloin. Mustard vinaigrette, a quick herb sauce, or barbecue sauce all work; choose a sauce that complements the paprika rather than covering the grilled flavor. For a casual meal, slice the pork thinly and serve it in rolls with slaw. For a plated dinner, cut thicker medallions and spoon any juices collected on the cutting board over the slices.
Variations
For a citrus-herb version, replace the paprika and garlic powder with 1 teaspoon dried oregano (about 1 g), ½ teaspoon lemon zest (about 1 g), and a pinch of red pepper flakes. Keep the salt and pepper, and serve with lemon. For a warmer, slightly sweet rub, use ½ teaspoon ground cumin (about 1 g) and ½ teaspoon brown sugar (about 2 g) in place of the paprika; watch the surface carefully because sugar can darken quickly over direct heat.
You can also brush the pork lightly with barbecue sauce during the final 3–4 minutes over indirect heat. Applying it near the end helps reduce scorching from the sauce’s sugar. For a simple marinade, combine 2 tablespoons (30 ml) olive oil, 1 tablespoon (15 ml) lemon juice, and the listed seasonings, then refrigerate the pork in a covered container for 30 minutes to 2 hours. Count that marinating time if you use this option, discard the marinade that touched raw pork, and pat the tenderloin dry before grilling so it browns well.
Storage and Reheating
Refrigerate leftover pork within 2 hours of cooking, in a shallow airtight container. It keeps for 3–4 days in the refrigerator. For longer storage, freeze sliced or whole portions in a well-sealed freezer-safe container; use within about 2–3 months for best texture. Thaw frozen pork in the refrigerator, not on the counter. Keep any sauce or sides in separate containers when practical.
To reheat without drying it out, place slices in a covered skillet with a spoonful of water, broth, or sauce and warm gently over low heat, turning once. You can also cover the pork and reheat it in a 300°F (149°C) oven with a little liquid. Heat leftovers to 165°F (74°C), as recommended for reheated leftovers, checking with a food thermometer. Reheat only the amount you plan to eat, since repeated warming can make the meat tough.
Frequently Asked Questions
How long does a pork tenderloin take on a gas grill?
A tenderloin around 1¼ pounds usually takes about 20–22 minutes: roughly 8 minutes of searing over direct heat and 12–14 minutes over indirect heat. Thickness, starting temperature, grill calibration, and weather can change the timing. Begin checking early and cook to 145°F (63°C), then rest for at least 3 minutes.
Should I grill pork tenderloin with the lid open or closed?
Keep the lid closed for most of the cooking. Closing it helps the grill maintain an even temperature and lets the indirect-heat side cook the center efficiently. You will need to open it briefly to turn the pork, move it between heat zones, or check its temperature.
Do I need to flip pork tenderloin while grilling?
Yes. Turn it about every 2 minutes while searing so the rounded sides brown evenly, then turn it once while it finishes over indirect heat. Use tongs rather than a fork, which can pierce the meat and let juices escape. There is no need to rotate it constantly once it is on the indirect side.
Can pork tenderloin be a little pink in the middle?
Yes. A slight pink color can remain when a whole cut of pork has reached the USDA FSIS safe minimum of 145°F (63°C) and rested for 3 minutes. Color varies with lighting and cooking conditions, so use a thermometer in the thickest part rather than cooking until the center looks completely white.
Can I cook pork tenderloin entirely over direct heat?
You can, but it is easier to overbrown the outside before the center is done, particularly on a hot gas grill. The two-zone method gives you a quick sear followed by gentler cooking. If your grill cannot create two heat zones, lower the burners after searing and keep the lid closed, checking the internal temperature frequently.
Should I marinate pork tenderloin before grilling?
No, it is optional. A short marinade adds flavor, but the simple oil-and-spice rub in this recipe is ready to grill after seasoning. If you do marinate, keep the pork refrigerated, limit the time to about 2 hours for this lemon-based mixture, and discard the used marinade or boil it thoroughly before using it as a sauce.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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