Does Prime Rib Continue to Cook While Resting? (You Might Be Surprised)

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Letting a prime rib roast rest is crucial. It allows the meat juices to be redistribute and the muscle fibers to relax; this makes for a more tender piece of prime rib.

But have you heard of carryover cooking? This is when the meat continues to cook after being removed from the grill. 

So, will your prime rib continue to cook when resting? If so, will that mean you end up with overcooked meat? Don’t worry. Below, I’ll explain how to cook your prime rib to get it exactly how you want it. 

Carryover Cooking When Resting a Prime Rib Roast

A prime rib (or any piece of meat) will continue to cook when resting, the correct terminology for this is called carryover cooking. Considered a part of the cooking process and a traditional method used in BBQ.

Carryover Cooking – What You Need to Know

But for now, let’s focus our attention on what exactly carryover cooking is. This is when your meat cooks after removing it from a heat source.

The meat proteins will retain heat for some time, which will continue to raise the internal temperature. And carry on… Cooking!

However, many factors can affect or alter this process. Like the cooking process, and the resting technique.

How Much More Does The Temperature Increase?

So you’ve got your target temperature for your desired doneness. But forgot about the carryover cooking, how much can I expect the internal temperature to raise?

The average temp your prime rib will raise by is 10°F.

Factors to Consider for the Carryover Cooking

I have included an example of working out the carryover for cooked beef. But what can impact the calculations?

The Weight of the Prime Rib

The weight of your rib roast plays a role when the meat rests. More mass and density = more heat retention.

Boneless Rib Roast or Bone-in Roast?

Bone-in Roast

The beef ribs will affect the resting time, it will keep residual heat for longer. Which can cause an increased carryover cooking rate. Note: This will also apply to the cooking time in your rib recipe.

Boneless Roast

Cuts of meat without bones will lose temperature at a higher rate when resting. So you may need to add a couple of minutes to the below calculations.

Intergrate the Carryover Cooking Into the Internal Temperature

The level of doneness in beef is personal preference, each with pros and cons!

Below are the temperature levels of doneness.

Note: A perfect medium does work best for a rib roast, this is because the outer layer of fat and connective tissue need to be rendered.

Prime Rib Beef Internal Temperatures for Doneness

Here is the target temperature chart for any beef meat cut, as well as the temps to remove for the carryover cooking.

Rare – 125°F (remove at 115°F before resting)

Medium – 135°F (remove at 125°F before resting)

Welldone – 155°F (remove at 145°F before resting)

How to Accurately Monitor the Meats Internal Temperature

Always use a meat thermometer in the thickest parts of the beef, avoid direct contact on the bone with the probe otherwise, you get a faulty reading.

Having an instant-read thermometer is vital for any recipe, don’t forget it!

The Carryover Cooking Rate for a Roast Prime Rib at 225°F.

Before this example, let me be clear, gthese are estimates and can vary on the above factors.The best and only way to monitor the carryover is with a meat thermometer. So don’t let your expensive roast meat dry.

Estimating the Timings for a 8-Pound Bone-in Roast

My USDA choice prime rib roast has been cooked with indirect heat at 225°F. It also contains the rib bones which keeps the meat warm.

On average, a prime rib roast will carryover cooking by around 10°F. Within the timeframe of 20-30 minutes or by 1°F every 2 minutes per pound.

What Happens After the Carryover Cooking?

You might be wondering what happens after the calculated resting time, which again is very obvious.The prime rib will begin to drop in temperature.

Important Food Safety Note While Resting

Being food safe concious is another hallmark of a great chef.

– Do not let the meat go below 100°F, as this will harbor bacteria growth.

– Do not let it go above 160°F,  as the hot meat will continue to cook and dry out.

Monitor the Temperature While Resting

– Monitor these temps with a meat thermometer inserted deep in the muscle tissue.

Something Else to Consider When Resting & Carryover Cooking

A common cooking technique is to create a flavorful crust, this is called searing. You sear on high heat to create the milliard reaction, which is the chemical reaction in food that turns it brown and also tastes delcious.

Smoke On!

Charlie

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