question how long to cook roast beef at 225 degrees

How Long to Cook Roast Beef at 225 Degrees

Slow cooking has become increasingly popular over the years, and for good reason. This method of cooking is perfect for busy individuals who still want to enjoy a home-cooked meal. The low heat and slow cook time help to develop the flavors in the meat and make it incredibly tender. However, it’s crucial to get the cook time right to ensure a perfect roast every time.

The Basics of Slow Cooking

Slow cooking involves cooking food at a low temperature for an extended period. This method is perfect for tougher cuts of meat, which typically require a more extended cook time to break down the connective tissues and become tender.

Using this method has its benefits. For one, you don’t have to spend as much time in the kitchen once you’ve prepared your meat and placed it in the oven. You can go about your day while your meal slowly cooks without worrying about burning it.

One drawback of slow cooking is that it can be challenging to achieve crispy skin on meats such as pork shoulder or chicken when using this method. Additionally, since the cook time is extended, there’s always the possibility of overcooking your meat if you’re not careful.

Tips on when to use slow cooking:

  • Cooking tough cuts of meat, such as beef chuck or pork shoulder
  • Cooking in advance for events or gatherings
  • Cooking when you’ll be away from home for an extended period

Factors that Affect Cooking Time

Several factors will affect how long it takes to cook your roast beef at 225 degrees.

The type and size of the roast beef

The type and size of the roast beef will greatly affect the cook time. A larger cut of meat will require more time to cook than a smaller one.

Temperature of the oven

Temperature is another critical factor in cooking a roast beef. Cooking your meat at 225 degrees is a low and slow method, which means it takes a more extended period to cook through than traditional baking methods.

Internal temperature of the meat

The internal temperature of your meat is also an important factor in determining how long you should cook your roast beef. To achieve a perfect medium-rare, the internal temperature should be around 130-135°F for most cuts of roast beef.

Resting period after cooking

It’s essential to let your roast rest for at least ten minutes after removing it from the oven. Doing so will allow the juices to distribute evenly throughout the meat, resulting in a juicier and more flavorful roast.

How to Calculate Cooking Time

To ensure that your roast beef is cooked perfectly every time, it’s essential to calculate the cook time accurately. One easy way to do this is by using a meat thermometer.

Explanation on how to use a meat thermometer

A meat thermometer is an excellent tool to have when cooking a roast beef. This device will help ensure that your meat is cooked to perfection by measuring its internal temperature. Place the thermometer into the center of the thickest part of the meat without touching any bones or fat.

Cooking time for various cuts of roast beef

Cooking time varies depending on the cut and size of your roast beef. Below are guidelines for cooking times for various cuts of meat:

Chuck Roast

  • ¼ done: 3-4 hours/li>
  • ½ done: 4-5 hours
  • ¾ done: 6-7 hours

Ribeye Roast

  • ¼ done: 2-2.5 hours
  • ½ done: 3-3.5 hours
  • ¾ done: 4.5-5 hours

Sirloin Roast

  • ¼ done: 2.5-3 hours
  • ½ done: 3.5-4 hours
  • ¾done: 5-6 hours

If a meat thermometer isn’t available, you can estimate the cooking time by multiplying the weight of the roast by the minutes per pound required to cook it to the desired doneness.

Preparation and Cooking Techniques for Slow Roasting Beef

Preparation Techniques

Seasoning and marinating your roast is essential to getting that perfect flavor you’re looking for.

  • Season the roast with salt and pepper at least an hour before cooking to allow the seasoning to penetrate the meat. Other seasonings can be added according to preference.
  • If marinating, place your beef in a resealable plastic bag or container, and pour over the marinade. Don’t be too generous when using acidic marinades like lemon and vinegar, as this could toughen the meat. The beef should be left to marinate in the fridge for at least four hours and up to overnight, depending on the recipe.
  • Tying your roast beef securely is also essential. Tying the roast evenly ensures that it cooks evenly.

Cooking Techniques


Cooking a roast beef in the oven is probably the most straightforward method. Here’s how:

  • Preheat your oven to 225 degrees F (110°C).
  • Place your seasoned or marinated roast beef on a roasting pan or a baking dish. Let it sit at room temperature for at least 30 minutes before cooking.
  • Cook the roast beef until it reaches your desired internal temperature mentioned earlier.
  • Once done, remove your roast from the oven and let it sit for at least ten minutes before carving.

If you don’t feel like using an oven to cook your roast beef, you can always use a grill instead.

  • Preheat your grill to medium-high heat
  • Sear all sides of the meat to lock in the juices.
  • Turn down the heat to low and continue cooking your meat until it reaches your desired internal temperature.

Note that when grilling with indirect heat, you can add wood chips or other smoking agents to give it extra smoky flavor.


If you have a smoker, cooking roast beef will give you that extra smoky flavor and aroma that many people love. Here’s how:

  • Rubs vs Marinades
  • Rubs or marinades may be used to enhance the flavor of your smoked beef.

  • Preparing your smoker for use
  • Set it to 225 degrees F (110°C), and add a wood of choice such as apple, hickory, or cherry. Smoke the roast until it reaches your desired internal temperature. Once done, remove your roast from the smoker and let it rest before carving.

FAQ’s Surrounding Cooking Roast Beef at 225 Degrees Fahrenheit

Can You Cook Other Foods with the Roast?

You can cook vegetables along with the roast in the oven if you wish. Potatoes, carrots, onions, and mushrooms are all good options. Simply chop them into small pieces and place them around your roast beef in the roasting pan. Toss them in a little oil and seasoning about halfway through cooking.

How Do You Know When Your Roast Is Done?

The best way to know when your roast is done is to use a meat thermometer. Insert it into the thickest part of the meat without touching any bones or fat. Once it reaches your desired internal temperature mentioned earlier, it’s ready.

You can also tell if your meat is done by poking it with a fork or skewer. If the juices run clear, then it’s done. However, this method is not as reliable as using a meat thermometer since some types of beef are naturally darker in color than others.

Can You Cook Roast Beef in a Slow Cooker?

Absolutely! Slow-cooking beef in a Crockpot or Instant Pot yields a delicious and tender result just like an oven would. Although slow-cooker recipes tend to be more forgiving in terms of timing and temperature, a meat thermometer is still recommended to ensure that the internal temperature of the meat has been reached.

Tips For Succulent Roast Beef at 225 Degrees

  • Bring your beef to room temperature before cooking for even cooking throughout. Letting it sit out of the fridge for about half an hour should suffice.
  • Baste regularly: Basting your roast beef with pan juices keeps it juicy and flavorful. Brush it once every 20-30 minutes while it cooks for optimal results.
  • Resting Period: After removing your roast from the oven, let it rest for at least ten minutes before carving.


Cooking roast beef at 225 degrees is a fantastic way to get an incredibly flavorful and tender result. Remember that a meat thermometer is critical in ensuring that you achieve a perfect roast every time. Play around with different seasoning combinations and cooking techniques, and you’ll soon find the perfect recipe for your family and friends.

Cooking is all about trial and error, so don’t be afraid to experiment and enjoy the process!

How long should I cook a roast beef at 225 degrees?

Roast beef should be cooked for approximately 1.5 to 2 hours at 225 degrees for each five pounds of meat. The total cooking time will vary depending on the size and cut of your roast.

Can I cook roast beef at a higher temperature?

Yes, you can cook roast beef at a higher temperature if you’re short on time. However, cooking at a high temperature will result in a roast that is less tender and may dry out more easily.

What’s the best way to check if my roast beef is done?

The best way to check if your roast beef is done is by using a meat thermometer. Insert it into the thickest part of the meat, and ensure that it has reached an internal temperature of 145°F for medium-rare or 160°F for medium.

Do I need to let my roast beef rest before serving?

Yes, it’s important to let your roast beef rest for at least 15 minutes before carving. This allows the juices to redistribute throughout the meat, making it more tender and flavorful. Cover it with foil during this time to keep it warm.

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