how long to cook a 3 lbs pork tenderloin
Step 6. Roast the meat in the oven for 10 minutes. Reduce temperature to 250 Fahrenheit and continue to cook until the internal temperature reaches 150 degrees Fahrenheit. This should take about one hour for a 3-pound roast.tep 6. Roast the meat in the oven for 10 minutes. Reduce temperature to 250 Fahrenheit and continue to cook until the internal temperature reaches 150 degrees Fahrenheit. This should take about one hour for a 3-pound roast.