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Air Fryer Pork Tenderloin (Juicy, 145°F)
Tenderloin is the easiest pork to ruin and the most rewarding to get right: a lean, tapered muscle that goes from silky to sawdust in about three degrees. This page is built on the field's three agreements — cook by temperature not time, pull at 140–145°F, and rest it a full 10 minutes (a tested difference: the longer rest is measurably juicier). Note the cut: tenderloin is the small, narrow muscle — not the wide pork loin, which needs a different recipe entirely.
| Prep time | 10 min |
|---|---|
| Cook time | 20 min |
| Temperature | 400°F (200°C) |
| Servings | 1 tenderloin (about 1.25 lb) |
| Category | Beef & Pork |
Ingredients
- 1 pork tenderloin (1–1.5 lb / 450–680 g), silverskin trimmed
- 1 tbsp olive oil
- 2 tsp smoked paprika
- 1 tsp garlic powder
- 1 tsp brown sugar
- 1 tsp fine salt, 1/2 tsp black pepper
Method
- Trim the silverskin (the shiny membrane) with a thin knife — it never tenderises. Fold the thin tail end under and tie or skewer it so the loin is one even thickness.
- Rub with oil and the spice mix; rest 15 minutes at room temperature while the fryer preheats to 400°F (200°C).
- Air fry 18–22 minutes for a 1.25 lb tenderloin (slim 1 lb pieces: 15–18), flipping halfway. Start checking temperature at 15 minutes — sizes vary more than clocks do.
- Pull at 140–145°F (60–63°C) at the thickest point.
- Rest a full 10 minutes, tented loosely. Slice into medallions across the grain and pour the board juices over.
Tips that actually matter
- Marinades love this cut: 2–12 hours in soy, garlic and a little honey transforms it — pat dry before cooking so the rub still crusts.
- No thermometer is the only real risk here; tenderloin gives almost no visual doneness cues.
- Leftovers slice beautifully cold into sandwiches and salads — cook once, eat twice.
Why this recipe works
Tenderloin's leanness is its trap: with almost no internal fat, its moisture is a fixed budget that temperature spends. Every degree past 145°F tightens the protein fibres and squeezes that budget out — which is why the cut rewards a thermometer and a long rest more than any other pork. The rest is not patience theatre: resting fibres relax and reabsorb the juices that slicing would spill.
Variations to try
Flavour directions that suit this category: Chimichurri over anything beef; honey-mustard glaze brushed on pork in the final 3 minutes; a coffee-chilli rub for steak; Italian-herb and Parmesan through meatballs; maple and black pepper over bacon in its last 2 minutes.
What to serve with it
Slice it over white beans and greens, into a mustard-cream sauce for a French bistro plate, or cold in a baguette with cornichons. Leftover medallions also cube beautifully into fried rice.
Storage & reheating
Fridge 3–4 days. Reheat slices gently at 325°F (165°C) for 4–5 minutes — high heat murders leftover tenderloin. Or serve cold, which it suits.
Frequently asked questions
- Is pink pork safe?
- Yes, at temperature: since 2011 the USDA guideline for whole pork cuts is 145°F with a rest — a blush-pink centre at that temperature is cooked and safe, not raw. Grey pork is simply pork cooked past its best.
- Tenderloin vs pork loin — same thing?
- No, and the confusion ruins dinners: tenderloin is the small narrow muscle (about 1–1.5 lb, cooks in 20 minutes); a loin roast is wide, 2–5 lb, and needs lower heat and much longer. This recipe is tenderloin only.
- Why did mine come out dry?
- Almost always the temperature overshot — tenderloin climbs fast in the last minutes. Start checking at 15 minutes and honour the full rest; slicing early pours the juice onto the board.
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