For a rare sirloin tip roast, you’ll want to cook it to an internal temperature of 120-125°F (49-52°C). This will result in a juicy and tender roast with a bright red center. To achieve this, preheat your oven to 450°F (232°C) and roast the meat for 15 minutes. Then reduce the heat to 325°F (163°C) and continue cooking for approximately 20-25 minutes per pound. Remember to use a meat thermometer to ensure accuracy.
If you prefer your sirloin tip roast cooked to medium, aim for an internal temperature of 140-145°F (60-63°C). This will give you a slightly pink center with a good amount of juiciness. To achieve this, follow the same initial steps as for a rare roast but increase the total cooking time to around 25-30 minutes per pound. Let the roast rest for 15 minutes before slicing to allow the juices to redistribute.
For Well-Done Sirloin Tip Roast
For a well-done sirloin tip roast, cook it to an internal temperature of 160-165°F (71-74°C). This will result in a fully cooked roast with no pink in the center. To achieve this, follow the initial steps for a rare roast but increase the total cooking time to around 30-35 minutes per pound. Keep in mind that cooking the roast to well-done may result in a slightly drier texture, so be sure to use a meat thermometer to avoid overcooking.