Pork
How Long to Cook Pork Tenderloin
Pork tenderloin takes 20–25 min at 425°F in the oven — the fastest roast cook. Sear first for a deep crust, then finish in the oven. Internal temp: 145°F.
Reference size: 1–1.5 lb tenderloin (serves 3–4)
Safe Internal Temperature
145°F / 63°C
Cooking Times by Method
| Method | Temperature | Time |
|---|---|---|
| Oven | 425°F / 220°C | 20–25 minutes (after searing) |
| Air Fryer | 400°F / 200°C | 20–25 minutes |
| Grill | Medium-high (400°F) then indirect heat | Sear 2 min per side, then indirect 15–20 min |
| Slow Cooker | Low | 2–3 hours (don't overcook! — it turns mushy) |
Oven: Sear on all sides in oven-safe skillet, then roast at 425°F until 140°F (carries over to 145°F during 5 min rest).
Air Fryer: Flip halfway. Stays incredibly juicy. One of the best air fryer proteins.
Grill: Sear over direct heat, then move to indirect side until 145°F.
Slow Cooker: Unlike tough cuts, tenderloin can overcook in slow cooker. Check at 2 hours.
Chef Tips
- 1Silver skin (the white membrane) must be removed — it shrinks and toughens when cooked. Run a sharp knife under it and peel off.
- 2Tenderloin is the most tender cut precisely because it does very little work — it's lean and quick-cooking.
- 3Don't overcook — literally 5 extra minutes pushes it from perfect to dry.
- 4Marinade for 2–4 hours for maximum flavour (or rub generously).
Frequently Asked Questions
How long to cook pork tenderloin at 425°F?
After searing on the stovetop: 20–25 minutes at 425°F for a 1–1.5 lb tenderloin. Internal temp should be 145°F (pull at 140°F — carryover takes it to 145 during 5 minute rest).
How long to cook pork tenderloin in air fryer?
Pork tenderloin in air fryer at 400°F: 20–25 minutes, flipping halfway. This is one of the best air fryer recipes — the tenderloin stays very juicy. Brush with olive oil and season well.
What is the difference between pork loin and pork tenderloin?
They're different cuts. Tenderloin is a small, narrow, very tender muscle (1–1.5 lb). Pork loin is a large roast (3–5 lb). Tenderloin cooks in 25 minutes; pork loin takes 60–90 minutes. Don't swap them in recipes.
Can I cook pork tenderloin from frozen?
Yes — oven at 425°F from frozen takes about 45–55 minutes (vs 25 min thawed). Air fryer from frozen at 400°F: 30–35 minutes. Verify 145°F internal temp throughout.