I followed directions exactly and after 15 minutes it was nowhere near 165 degrees. Be aware your cook time will be longer! Maybe my tenderloins were thicker than usual, they were 1lb each?
Note from Carma @PBI:
Thank you for your review. Please note that National Pork Board's and USDA's cooking recommendations for pork tenderloin is to cook to 145F as measured by a meat thermometer and followed by a 3-minute rest. The usual cooking time for a one pound pork tenderloin in 425F oven is about 15-20 minutes. Also the two pork tenderloins need to have some space between them on the pan during cooking. It is good to note though that ovens may vary slightly and these are recommended guidelines.