Question: how long do.you cook a pork roast?
Answer: Roast for 15 minutes, then lower heat to 375 degrees F and continue roasting until the meat thermometer reads 145 degrees F. In my oven it takes 75 minutes (about 25 minutes per pound). Remove the pork roast from the oven. Loosely tent it with foil, and allow it to rest for 20 minutes.