cast-iron ChartsDATASHEET // CT-CI-041
cast-ironSTATE: FRESHVERIFIED DATASHEET
How Long to Cook Pork Tenderloin (Whole, 1.25 lb) in the cast iron
Specification: 1-1.25 lb whole pork tenderloin, silver skin removed, seared on all sides then oven-finished at 400°F
Target Temp
425°F (218°C)
Stovetop Sear
Total Time
18–22 mins
Total Cook Window
Flip Mark
4m
Turnover Point
Internal Safe Temp
140°F (pull) → 145°F (63°C) medium with 5-min rest
USDA Safe Pull
COOK MODE
Live timer · flip prompt · target temp · rest stage
3-Step Execution Protocol
1
Preheat & Prep
Heat cast iron skillet over 425°F (218°C) until lightly smoking. Prepare pork tenderloin (whole, 1.25 lb) (1-1.25 lb whole pork tenderloin, silver skin removed, seared on all sides then oven-finished at 400°F).
2
Cook & Flip
Cook for 18–22 mins. Flip at the 4-minute mark for even browning.
3
Check & Rest
Deep mahogany crust all around; internal probe reads 140°F carrying over to 145°F safe medium. Confirm internal temperature reaches 140°F (pull) → 145°F (63°C) medium with 5-min rest. Rest for 5 minutes before serving.
Verification Basis & Testing Rig
USDA FSIS Whole Pork Safe Minimum (145°F + 3-min rest); National Pork Board Sear-Roast Guidelines.
Pro Tip: Sear 2 minutes on each of four sides on the stovetop, then transfer the entire cast-iron skillet directly into a 400°F oven to finish.
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