A high-quality roasting pan helps turn out excellent roast beef and other roasts. It's worth the expense to get a heavy pan with a rack and easily gripped handles. Anodized aluminum pans are sturdy and conduct heat well, making them a smart choice, while pans with an aluminum core and stainless steel coatings are good picks, too. Roasting pans sides should be no more than 2 inches high to allow for heat circulation and to prevent steaming food in its drippings. With a decent roasting pan and proper preparation, it's simple to make a beef roast that practically melts in your mouth.
Remove the beef from the refrigerator about 90 minutues before roasting it so it doesn't go into the oven chilled. Cold meat doesn't cook evenly.
Heat the oven to 475 degrees Fahrenheit if you want a well-browned exterior. Alternatively, heat it to 325 F if you're more concerned with minimizing meat shrinkage during roasting than nicely browning the outside. Give your oven about 30 minutes to heat up to the higher temperature or 20 minutes to reach the lower temperature.
Blot moisture off the surface of the beef with paper towels. Pat on salt and pepper to taste, as well as any other spices or herbs you'd like to include. You could give your roast some heat with a favorite chili powder or Cajun seasoning, or add depth of flavor with some dried oregano, thyme or garlic powder.
Press an oven-safe meat thermometer into the center of the beef roast. Don't let it touch bone if you have a bone-in cut, as this throws off readings. Because cooking times vary so much by cut and thickness of the beef, accuracy and consistency of your oven's temperature regulation, whether or not you start at a higher cooking temperature, roasting pan color and material and other considerations, the meat's internal temperature is the only sure way to know when it's cooked to the desired doneness.
Cover the bottom of the roasting pan with aluminum foil to simplify cleanup if you don't intend to deglaze it to make a sauce for your beef roast. Leave it uncovered if you will deglaze. Put the rack in the roaster tray, put the beef on it and place it in the middle of the oven.
Turn the heat down to 325 F after about 15 or 20 minutes if you began at a higher temperature to brown the beef. Otherwise, cook at a consistent 325 F for the entire roasting period.
Remove the roast from the oven when it reaches 7 to 10 F below the desired internal temperature, as the temperature continues to rise during resting. The larger the roast, the more its temperature rises with residual cooking. While U.S. food safety standards call for cooking solid cuts of beef to 145 F, many cooks choose to go to only 120 F for rare meat, 130 F for medium-rare or 140 F for medium; others go further to 150 for medium-well or 160 for well done. Keep in mind that beef becomes drier and tougher the more it cooks.
Leave the beef roast to rest for at least 10 to 15 minutes before carving it. If you don't, juices that seep out of the muscle fibers during roasting don't get reabsorbed and escape the meat when it's cut.