Internal temperatures
Smoked pork loin internal temperature: when it is done
Mike Ross · How we research · Updated 2026-11-02
The numbers that matter
| Milestone | Internal temp | What it means |
|---|---|---|
| USDA safe minimum | 145°F | Safe, and done |
| Pull it | 145–150°F | Juicy and safe |
| Rest | 9–21 minutes | Before slicing or pulling |
Safe minimum from the USDA FSIS Safe Minimum Internal Temperature Chart. The pull window and rest are long-standing barbecue convention, not a published standard, and we present them as that.
Why 145°F is the target
For pork loin, the food-safety number and the finish line are the same number. There is no tough connective tissue waiting to render, so every degree past 145°F costs moisture rather than buying tenderness. That makes an accurate probe more important here than on a brisket, not less.
How to tell it is done
Not a low-and-slow cut. Pull at 145°F and rest — every degree past that costs moisture.
Where to probe. In the centre of the thickest part. Lean cuts like pork loin overshoot quickly, so start checking well before you expect it to be done.
A dome thermometer reads the air under the lid, not the meat. To hit a 5°F window you need a probe in the meat itself — how the budget and premium instant-reads compare.
How long it takes to get there
Conventional cook times at each smoker temperature we chart. Each row opens the full page, with every weight, a start time and a fuel estimate.
Common questions
- What internal temperature is pork loin done at?
- 145°F, measured in the thickest part. That is USDA's safe minimum internal temperature, and for pork loin it is also the finish line. Most cooks pull somewhere in the 145–150°F window.
- How long should pork loin rest?
- 9–21 minutes is the conventional window. Rest it loosely tented so the surface does not steam soft.
- Where do I put the thermometer in pork loin?
- In the centre of the thickest part. Lean cuts like pork loin overshoot quickly, so start checking well before you expect it to be done.
Keep reading
Smoker Time Calculator
Your weight and your serve time, turned into the hour you light the smoker.
Every internal temperature
Pull temperatures, safe minimums and rests for every cut on one chart.
Thermapen ONE vs Alpha Grillers
The budget probe this page recommends, against one that publishes ±0.5°F accuracy and ships a calibration certificate — and when that difference matters.