How long is a pork tenderloin cooked in the oven?

For pork tenderloin to be thoroughly cooked, it must be baked at 425 to 450 degrees Fahrenheit for 20 to 27 minutes. Pork tenderloin tends to dry out and toughen if cooked for more than a half hour, even at lower temperatures, and undercooked pork presents health hazards.

For food safety reasons, the internal temp of a fully cooked pork tenderloin should reach at least 145 F. Some chefs brown the tenderloin in a skillet on top of the stove first, then roast it for 20 minutes in the oven. This ensures that the tenderloin develops even caramelization while reducing the time the tenderloin spends in the oven.