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The whole, 7-bone standing rib roast is cut from the primal rib section of the steer. It consists of ribs 6-12 (ribs are numbered from the head to the tail) and weighs 14-20 pounds. Each beef carcass renders only two whole beef rib roasts.
The term standing rib roast refers to a bone-in roast, and the roast is cooked "standing" on its rack of ribs.
This photo shows a 15.97 pound whole beef rib roast. A 7-rib roast may be cut into pieces and sold as 2-, 3-, 4-, or 5-rib roasts. A 3-rib roast will weigh 6-7 pounds.
There are several considerations when selecting a beef rib roast for grilling or barbecuing.
Quality Grade: Buy USDA Choice
Many beef producers pay to have their meat graded for quality by the United States Department of Agriculture (USDA). The highest quality grade is USDA Prime. USDA Prime is the most tender, juicy, and flavorful beef, based on the degree of marbling (intramuscular fat) and degree of maturity (apparent age of the carcass) determined during the grading process. Only about 2% of beef produced in the United States is graded USDA Prime, making it a rare commodity that commands a high price.
USDA Prime is followed by USDA Choice, and then USDA Select., each with less visible marbling and potentially more maturity. There are several quality grades below USDA Select, but you won't see them in the supermarket.
You can easily find USDA Choice beef rib roasts at better supermarkets and membership warehouse stores (Photos 1-3). It's a very good choice for grilling or barbecuing—tender, with a good amount of marbling, and reasonably priced.
If you can find it, and if your budget allows for it, splurge on a USDA Prime beef rib roast. It's the best of the best, with superior tenderness, marbling, and flavor. You'll find it at high-end butcher shops, gourmet supermarkets, and sometimes at membership warehouse stores.
Because USDA Select roasts have even less marbling than USDA Choice, they're more likely to seem tough and less juicy after cooking. Seek out USDA Choice instead—you'll be glad you did.
Look for the USDA Prime or USDA Choice shield on the package, as shown Photos 4-5.
Historically, the term prime rib has been used to describe beef rib roast of any quality grade. The USDA does not require that beef rib roast come from USDA Prime grade beef.
Small End Vs. Large End
Many experts say
that a beef rib roast cut from ribs 10-12 (closest to the short
loin) is best because it is more lean and tender. This roast
is called the small end or first cut. Other folks like
a roast from ribs 6-8 (closest to the shoulder), which is slightly
less tender, but contains more fat for better flavor. This is called the
Beside the amount of lean vs. fat, you can tell the difference between these two roasts by comparing the length of their bones. A small-end roast has longer rib bones than a large-end roast.
So, if you want more lean meat for your money, buy one from the small-end. If you like a little bit more fat, purchase one from the large end.
Bone-In Vs. Boneless
Beef rib roasts are sold two ways—bone-in or boneless. There are several advantages to cooking a bone-in beef rib roast:
Buy a bone-in beef rib roast whenever you can.
Some beef producers "brand" their beef products—not with a red-hot
branding iron, but with fancy marketing names. Examples of successful
branded beef include Certified Angus Beef (CAB), Meyer Natural Angus
Beef, and IBP Chairman's Reserve Certified Premium Beef. Pretty much
any meat that has a fancy name attached to it is a branded beef
An easy way to estimate how much rib roast to buy is to figure on feeding two people per bone. This is a generous estimate that allows for some leftovers.
Another way to estimate is to figure on 1 to 1-1/4 pounds pre-cooked weight per serving.
If you purchase a USDA Prime beef rib roast from a butcher, given the price you pay, you should expect it to be perfectly trimmed and tied with butcher's twine at each bone. Just season it and away you go.
In most cases, there's no need to trim anything from a beef rib roast before cooking it. Of course, if you see anything that looks odd or out of place, remove it before cooking.
You should tie the roast at each bone before cooking. This prevents the outer layer of meat from pulling away from the rib eye. Place the roast bone-side down. Cut a length of kitchen twine, loop it around the roast parallel to the first bone, bringing the two ends to the top of the roast. Pull snug and tie with whatever kind of knot you like, then repeat at each bone.
Don't bother cutting the ribs off and tying them back on before cooking, as you'll read about in some recipes. They're easily removed once the roast is cooked.
This video demonstrates how to tie a roast. Click on the video to play.
You don't have to dry-age a beef rib roast before cooking it, but if you're interested in learning more about the process, read on.
Beef is dry-aged in order to make it more tender and flavorful. During dry-aging, enzymes in the meat go to work on the connective tissue and muscle fibers, resulting in increased tenderness. Also, a significant amount of moisture evaporates from the meat, resulting in more intense flavor.
I was inspired to dry-age a beef rib roast after watching Alton Brown do it on "Good Eats" on the Food Network. Experts like Alton Brown and Cook's Illustrated magazine say that you can safely dry-age beef in your refrigerator at home for 3-7 days, while others like Bruce Aidells suggest that you leave dry-aging to professional butchers.
If you choose to dry-age a beef rib roast, you accept the risk of ruining an expensive cut of meat, or that you won't like the resulting flavor. Some people who are not familiar with the taste of dry-aged beef describe it as "gamy" or "musty". Others call it "buttery" or "rich". In the end, it's all a matter of personal preference.
On "Good Eats", Alton Brown drilled holes in a Rubbermaid container to create a "prolifically perforated plastic bin" (Photo 6). This allows air to circulate around the meat and protects it from spills and other contaminates, while protecting your fridge from any juices that might seep from the roast. Place the roast bone-side down on the lid and put the bin over the roast, as shown in the photo.
Alternatively, Brown suggests placing the roast bone-side down on a rack over a rimmed sheet pan and covering loosely with a dry towel, changing the towel daily.
When dry aging beef, your refrigerator should be impeccably clean and free of any items that produce strong odors, as the exposed meat may absorb these odors.
Place the roast at the back of the lowest shelf in your refrigerator, which should be the coldest location. Lower the refrigerator setting to achieve a temperature of 34-36°F. Measure the temperature near the roast using a refrigerator thermometer, or place a probe thermometer in a glass of water next to the roast (Photo 7).
I dry aged this roast for 3 days. Brown says, "You may notice a slightly funky aroma. That's OK. The smell of success."
Photo 8 shows how the roast looked after 3 days in the perforated bin. At first glance, it doesn't look much different, but Photo 9 shows that some of the edges have begun to dry out.
Use a sharp knife to shave off any dried or leathery spots on the roast. Photo 10 shows how much I trimmed from this roast.
Here are some resources about aging meat that you might find interesting:
There are lots of approaches when it comes to seasoning a beef rib roast. The most simple is kosher salt and freshly cracked black pepper—this just enhances the natural, rich flavor of the meat. For something more complex, try a commercial or homemade rub, or an herb paste. You'll find examples of all of these approaches in the beef section of the Cooking Topics page.
Make sure to season thoroughly. This is a large, thick cut of meat, so it can take a good amount of seasoning on the surface.
Most beef rib roast recipes suggest that you allow the meat to sit at room temperature for 1-2 hours before cooking. This helps the meat cook more evenly throughout. I've found it to be a successful technique, and suggest that you follow this approach if specified in the recipe you're using.
Beef rib roasts are typically cooked with the bone-side facing down. The bones act as a natural roasting rack.
You can successfully cook beef rib roast using a variety of cooking temperatures and techniques. The most common is 325-350°F for the entire cooking time. You'll also see recipes suggesting 225-250°F to a certain internal meat temperature, then finishing in the oven at 500°F to develop a good crust on the outside. In a few cases, you'll see recipes suggesting very high temps like 450°F for the entire cooking time.
I've used both the 325-350°F and 225-250°F methods. I think the 225-250°F method with a 500°F finish in the oven tends to promote more even doneness in the roast, but both methods work quite well and you'll be please using either one.
There is no need to turn or baste a beef rib roast during grilling or barbecuing.
At a cooking temperature of 350°F, the estimated cooking time for a 3-rib roast weighing 6-7 pounds to medium-rare doneness is about 2 hours. Factors that affect cooking time include the size of the roast, how hot the cooker is running, what type of fuel is used, and weather conditions.
To measure the internal temperature of a beef rib roast, insert an instant-read or probe thermometer into the middle of the roast from the top.
To make sure you hit the middle, place the thermometer on the outside end of the roast, so the tip is at the center of the roast. Pinch your fingers on the thermometer stem where it meets the top of the roast, then move the thermometer to the top center of the roast and insert it until your fingers touch the meat.
This doneness chart for beef roasts comes from the book The Complete Meat Cookbook.
Remove the roast from the cooker when it reaches the temperature in the left column, and carryover cooking during the resting period will bring the finished internal temp up to the range shown in the right column.
After cooking, cover the beef rib roast loosely with aluminum foil and let rest for 30 minutes before removing the bones and slicing. This allows the juices inside the meat to redistribute. You can read more about the science behind this in Letting Meat Rest After Cooking.
Remove the twine used to tie the roast. Roll the roast onto its side so the ends of the bones are pointing straight up. Using the bones as a handle, cut downward close to the bones and remove them (Photo 12). Reserve the bones as a snack for the chef.
Next, place the roast flat on the cutting board and carve slices to your desired thickness.
Primal rib section diagram: 2009 by JoeSmack, from Wikipedia Commons