The cooking time for pork tenderloin depends on the method and temperature used.
- Roasting at 450°F typically takes about 20-30 minutes for a 1.25-pound tenderloin, until the internal temperature reaches 145°F. Rest the meat for 10-15 minutes before slicing.
- Baking at 400°F usually takes 20-25 minutes to reach an internal temperature of 145°F, with a resting time of 5-10 minutes afterward.
- Another method is to sear the tenderloin first and then bake it at 400°F for 18-20 minutes until the thermometer reads 145°F, followed by a rest of 5-10 minutes.
- Grilling takes about 5-7 minutes per side until reaching 140-145°F internal temperature.
Using an instant-read thermometer to check for an internal temperature of 145°F is key to ensuring the tenderloin is cooked perfectly without drying out. Resting the pork after cooking allows juices to redistribute, keeping it juicy. In summary, the general cooking time range for pork tenderloin is about 20-30 minutes at 400-450°F oven temperature, with an internal temperature target of 145°F, plus a rest period before serving.
