How Long to Cook Pork Tenderloin in Air Fryer

How Long to Cook Pork Tenderloin in an Air Fryer for Juicy, Flavorful Results

Cooking pork tenderloin in an air fryer is a game-changer for anyone who loves a quick, delicious meal with minimal cleanup. This lean, tender cut of pork transforms into a juicy, flavorful centerpiece with a crispy, caramelized crust when prepared in an air fryer. But the question on everyone’s mind is: how long does it take to cook pork tenderloin in an air fryer? The answer depends on a few factors like the size of the tenderloin, your air fryer model, and your preferred doneness. Let’s dive into the details to ensure you get perfect results every time.

Understanding Pork Tenderloin and Air Fryer Cooking

Pork tenderloin is a long, slender cut of meat from the muscle along the pig’s backbone. It’s lean, tender, and cooks quickly, making it ideal for the air fryer’s high-heat, circulating air environment. Unlike pork loin, which is thicker and often used for roasts or chops, tenderloin typically weighs 1 to pounds and is about 2 inches in diameter. Confusing the two can lead to incorrect cooking times, so always check the label when shopping.

The air fryer’s rapid air circulation mimics a convection oven, creating a golden crust while keeping the interior juicy. It’s faster than traditional oven roasting and requires no searing on the stovetop, saving you time and dishes. The key to success is nailing the cooking time and temperature, which we’ll break down step-by-step.

Preparation: Setting Up for Success

Before we get to cooking times, let’s talk prep. A little effort here goes a long way toward a flavorful, tender result.

• Trim the Silver Skin: Most pork tenderloins have a thin, silvery membrane called silver skin on one side. This can become tough and chewy when cooked, so remove it with a sharp knife. Slide the knife under the membrane and gently cut it away, keeping as much meat intact as possible.
• Season or Marinate: A simple seasoning rub or marinade elevates the flavor. A popular mix includes olive oil, brown sugar, smoked paprika, garlic powder, onion powder, salt, pepper, and a pinch of cayenne for heat. The brown sugar caramelizes in the air fryer, creating a delicious crust. For deeper flavor, marinate the pork for 30 minutes to 48 hours in the fridge, as suggested by Foodess.
• Bring to Room Temperature: Let the tenderloin sit out for 20-30 minutes before cooking. Cold meat cooks unevenly, with the outside drying out before the center is done.
• Preheat the Air Fryer: Preheat your air fryer to 400°F for 5 minutes. This ensures even cooking and a crispy exterior.

Cooking Time and Temperature: The Magic Formula

The cooking time for pork tenderloin in an air fryer depends on its size and your desired doneness. The USDA recommends an internal temperature of 145°F for safe consumption, with a 3-minute rest to allow juices to redistribute. This yields slightly pink, juicy pork. If you prefer it more well-done, aim for 150-155°F, but avoid going higher to prevent dryness.

For a standard 1 to pork tenderloin, here’s a reliable guideline:

• Whole Tenderloin (1- lbs): Cook at 400°F for 20-22 minutes, flipping halfway through. Start checking the internal temperature at 18 minutes to avoid overcooking. Use an instant-read thermometer to confirm the center reaches 145°F.
• Smaller Tenderloin (under 1 lb): Reduce to 18-20 minutes at 400°F, checking at 15 minutes.
• Larger Tenderloin (over lbs): May need 22-25 minutes. If it’s too long for your air fryer basket, cut it in half and cook in batches or side-by-side with space for air circulation.
• Sliced into Medallions: If you cut the tenderloin into 1-inch thick medallions, cook at 400°F for 8-12 minutes, flipping halfway. This method, as noted by The Default Cook, reduces cooking time and ensures even doneness.

Air fryer models vary, so times may differ slightly. Smaller or basket-style air fryers may cook faster, while larger or oven-style models might need a bit more time. Always use a meat thermometer to check doneness rather than relying solely on time.

Step-by-Step Cooking Instructions

Here’s how to cook a pork tenderloin in the air fryer for perfect results:

1. Preheat: Set your air fryer to 400°F and preheat for 5 minutes.
2. Season: Rub the tenderloin with olive oil and your chosen spice mix. Ensure it’s evenly coated for maximum flavor.
3. Place in Air Fryer: Lightly grease the air fryer basket with oil or non-aerosol cooking spray. Place the tenderloin in the basket, ensuring it’s not overcrowded. If it’s too long, cut it in half or curl it slightly to fit.
4. Cook: Air fry at 400°F for 10 minutes, then flip the tenderloin. Continue cooking for 8-12 more minutes, checking the internal temperature at the thickest part. Remove when it hits 145°F for medium or 150-155°F for well-done.
5. Rest: Transfer the pork to a cutting board and let it rest for 5-10 minutes, loosely covered with foil. This step is crucial for juicy pork, as it allows the juices to settle.
6. Slice and Serve: Slice into ½-inch rounds and serve with your favorite sides, like roasted vegetables or mashed potatoes.

Tips for Perfect Air Fryer Pork Tenderloin

• Don’t Skip the Thermometer: An instant-read thermometer is your best friend for lean cuts like pork tenderloin. Overcooking by even a few minutes can dry it out.
• Flip for Even Cooking: Flipping halfway ensures even browning and cooking, especially in smaller air fryers where heat distribution varies.
• Avoid Overcrowding: If cooking two tenderloins, ensure there’s space for air to circulate. Overcrowding leads to steaming instead of browning.
• Frozen Tenderloin: You can cook from frozen, but it takes about 25 minutes at 400°F. Thaw for best results, as seasoning adheres better, per The Recipe Rebel.
• Resting is Non-Negotiable: Cutting too soon releases juices, leaving you with dry pork. Patience pays off.

Flavor Variations and Serving Suggestions

Pork tenderloin is a blank canvas for flavors. Here are some ideas to switch things up:

• Spicy Kick: Add chili powder or cayenne to the rub for heat.
• Herb-Forward: Use dried thyme, rosemary, or oregano for a Mediterranean vibe.
• Sweet and Savory: Brush with a mix of Dijon mustard and honey before cooking for a tangy-sweet crust.

Serve with sides that complement the pork’s richness. Air fryer baked potatoes, sautéed green beans, or a fresh kale Caesar salad pair beautifully. For a holiday meal, try roasted butternut squash or creamy mashed cauliflower.

Storing and Reheating Leftovers

Leftovers are a bonus with pork tenderloin. Store in an airtight container in the fridge for up to 4 days or freeze for up to 3 months. To reheat, use the air fryer at 350°F for 3-4 minutes to maintain texture, or microwave with a splash of broth to keep it moist. Leftover slices make great sandwiches or can be tossed into stir-fries.

Why the Air Fryer Shines for Pork Tenderloin

The air fryer’s ability to cook quickly at high heat makes it perfect for pork tenderloin. It locks in juices, creates a flavorful crust, and cuts cooking time compared to an oven. Plus, it’s a low-mess option—no greasy skillets to scrub. Whether you’re a busy parent or just craving a restaurant-quality meal at home, this method delivers.

So, how long to cook pork tenderloin in an air fryer? For most tenderloins, 20-22 minutes at 400°F gets you to that magic 145°F internal temperature. Adjust for size, check with a thermometer, and let it rest. With these tips, you’ll have juicy, tender pork that’s sure to impress. Happy cooking!