22-30 minutes
for a 2 1/2 lb roast beef:   Preheat your oven to high 400-425. put frozen roast in for 15-25min. Searing this way on the outside will seal in juices. Reduce the heat … to 300 and cook abt.. 2 more hours. I try to cook all my roasts frozen because I prefer my meat to be rare. you may wish to cook yours longer. Roasting times for beef. Preheat your oven to 160°C (325°F) and use these cooking times to prepare a roast that's moist, tender and delicious. Your roast should be covered with foil for the first half of the roasting time to prevent drying the outer layer. 1 I sit a few slices on the bottom of my roast too. 2  Sprinkle roast generously with garlic powder, or to your liking. 3  DO NOT SALT roast, or you will dry it out. 4  Put roast in the oven on the middle rack. 5  Bake at 500 degrees for 5 minutes per pound, then shut off oven, and let sit in the oven for 1 hour. 1 DO NOT SALT roast, or you will dry it out. 2  Put roast in the oven on the middle rack. 3 How long and at what temperature should I cook a beef roast in the oven? Roasting is a great cooking method for a large, tender cut of beef  such as a rib or sirloin roast. Sirloin-tip, rump, rolled-rump, eye-of-round or top-round roasts will also benefit from this cooking method if they are graded prime or choice. A boneless top round, by contrast, will take 28-30 minutes for rare, 30-33 for medium rare, 34-38 for medium, and 40-45 for well done. If you roast at 325°F (160°C), subtract 2 minutes or so per pound. If the roast is refrigerated just before going into the oven, add 2 or 3 minutes 3) Sprinkle salt, pepper and onion powder on all sides of the beef. 4) Place the beef in a roasting pan, and put it in the oven, uncovered. Timing is Everything. 1) Cook the roast for 15 minutes at 500 degrees F. 2) After 15 minutes, turn the temperature down to 375 degrees F. 3) Continue cooking for 16 minutes per pound (ex: If your roast is 3 pounds, that would be 48 minutes). 4) Remove from oven, and place pan on a cooling rack.  3. Cooking Temperature. There are varying opinions about what the perfect temperature to cook a roast beef but in my experience starting the beef in a very hot oven 425F/220C/Gas 7 for the first 30 mins then lower the temperature to 375F/190C/Gas5 for the remaining cooking time then ....  How long you would cook a 2.2 pound beef roast depends upon how you  like it cooked. For a rare beef roast, cook at 200 degrees  Celsius/390 degrees Fahrenheit for 30 minute … s. For a medium beef  roast, cook for 45 minutes or for well done meat, cook for an hour. Roasting times for beef. Preheat your oven to 160°C (325°F) and use these cooking times to prepare a roast that's moist, tender and delicious. Your roast should be covered with foil for the first half of the roasting time to prevent drying the outer layer. A. To answer your question, beef roasts can be done in a moderately slow oven (325 degrees) and need to be cooked 22-30 minutes per pound, depending on doneness. So for example, a 10 pound beef roast to be done should be cooked approximately 4 hours 10 minutes (at 25 minutes per pound).  The oven temperature used to cook a beef roast is usually set somewhere between 300 degrees and 450 degrees Fahrenheit. The recommended cooking temperature for your roast is usually determined by the type of beef cut that you plan to roast. The proper beef roast cook times and the correct beef cooking oven temperatures are extremely important. The optimum flavor and tenderness of various beef roasts can be consistently achieved when care is taken to follow the recommended time and temperature guidelines for cooking beef roasts. 3. Place the tray in the oven and roast for 1/2 hour. For the first half hour, the beef will cook at a higher temperature, which will give the outside of the beef a good sear. Make sure you remember to come back to the oven after 1/2 hour. Let the meat rest. Remove the roast from the oven once it has reached the desired temperature, tent a piece of aluminum foil over it to retain the heat and let the roasted beef rest for 15 to 20 minutes. Cooking at a constant oven temperature of 300°F (160°C), a 5- to 8-lb standing rib roast will take 17-19 minutes per pound for rare, 20-22 for medium rare, 23-25 minutes for medium, and 27-30 minutes for well done. A boneless top round, by contrast, will take 28-30 minutes for rare, 30-33 for medium rare, 34-38 for medium, and 40-45 for well done. If you roast at 325°F (160°C), subtract 2 minutes or so per pound. If the roast is refrigerated just before going into the oven, add 2 or 3 minutes
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how long should i cook a roast beef in the oven