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Dry prime rib??? HOW?!

I made prime rib for our Christmas dinner, and somehow it ended up very dry. It wasn't juicy and moist at all. And no, I didn't overcook it. Was definitely more rare and yet, somehow it ended up being dry. Even those tender pieces at the edge of the meat were dry. I don't understand how this happened and I'm utterly disappointed in my Christmas meal.

I used a pre-made spice rub from the local spice shop (says it's specifically for prime rib). I rubbed it on before going into the oven at 300 degrees, and it cooked for about 2 hours. It was 4.8 lb roast, bone was removed but tied to the meat. What could I have done wrong? I'd like not to make a mistake with this again. I thought this was foolproof.

asked by stephanieRD 4 months ago
9 answers 565 views
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HalfPint

HalfPint is a trusted home cook.

added 4 months ago

A couple of questions:
1. At what internal temp did you pull the roast out of the oven?
2. Did you let the roast rest for at least 20 minutes before you sliced into it?

BTW, what cut of meat was it?

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added 4 months ago

It was about 115 when I pulled it, and yes definitely rested for more than 20 minutes. It was a prime rib. I noticed they cut the bone away from the meat and tied it together.

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pierino

pierino is a trusted source on General Cooking and Tough Love.

added 4 months ago

Keep in mind that "prime" isn't the cut it's the USDA grading system. Even with the bone it can be a lesser grade.

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HalfPint

HalfPint is a trusted home cook.

added 4 months ago

I should have ask you what USDA grade it was. I can only think that the grade of the beef wasn't prime or choice, so your roast didn't have sufficient fat marbling which could be why it dried out. "Prime" refers to the primal cut, not USDA grade, so you can get a prime rib roast that are other grades like choice and select.

The meat cut from the ribs & then tied back isn't the culprit (that's how I order my rib roast from the butcher and it's never been a problem). It's a method that I read about in Cook's Illustrated and in the Weber grilling handbook.

I think your roast was too lean (i.e. not enough marbling) and that 's why it was dry and disappointing.

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BerryBaby

BerryBaby is trusted source on General Cooking

added 4 months ago

I think you should have started off with a hotter oven, 450 degrees. Roast needs to patted DRY before apply salt (or spices) are applied, and I only use salt and a lot of it. Bone side down in the pan, 450 for 15 minutes and then turn down the temperature to 325. DO NOT open the oven. A five pound roast should stay in for an additional 40 minutes and then start checking the temperature. Also, the roast should have sat out of the fridge for at least an hour before roasting. Internal temperature should be 120-125 for rare, medium rare 130-135, I wouldn't let it over that, or it could very well dry out. Let it sit at room temperature for about 20 minutes before carving. I'm sure others will have suggestions as well. This is just my method and it works every time. However, I do buy a larger roast 6-8 pounds with three ribs tied.

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pierino

pierino is a trusted source on General Cooking and Tough Love.

added 4 months ago

My first thought is, was it really "prime" rib? Rib roasts can be "choice" which doesn't have as much marbling of fat. If the meat is too lean it will definitely dry out with long cooking. And yes, you should check the internal temperature.

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pierino

pierino is a trusted source on General Cooking and Tough Love.

added 4 months ago

Another thought. A good rib roast, especially prime rib doesn't need a spice rub. Salt and pepper are sufficient.

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added 4 months ago

I would definitely try employing the Alton Brown method next time - though it does require some advance planning. You can look at the recipe for a standing rib roast here: http://www.foodnetwork...

His method is a bit involved because it is compensating for an oven that hasn't received proper cleaning, but basically the jist of it is this:

1. Blot all surface moisture from your rib roast, place on a sheet pan with a rack in your refrigerator and gently cover with cheesecloth or paper towels. Change the paper/cheesecloth once a day for 2-3 days, 3 days or more for a bigger roast. Alton prefers the humidity to be around 50-60% but that's a bit hard to maintain in some refrigerators. Anything 40% or above has worked for me.

2) Rub the entire roast with vegetable oil including bones, then season all with a generous amount of coarse kosher salt and freshly cracked black pepper. Place inside of a dutch oven, camp oven, or a cast iron roaster. If you use a ceramic vessel, you need to place it in the oven to preheat (to 250F) to prevent thermal shock. Place a probe thermometer in the center of the roast and set unit to alarm at ~118-120F internal temp. Place all in the oven, lower oven temp to 200F, and remove from oven when the internal temperature is reached.

3) Remove the top of the dutch oven or roaster, cover with aluminum foil, and let it rest until the internal temp reaches ~130F. In the meantime raise your oven temperature to ~480-500F. Roast at high temperature in the oven for 10-15 minutes or until you see the desired amount of browning. You can also remove the foil for the last 5 minutes and broil on low to achieve a crispy crust.

4) Let rest for 10-15 minutes on your cutting board before serving.

Basically, the trick to this is low and slow to cook the roast, and then blast it with high eat after resting to get the desired browning and crust on the meat at the end.

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added 4 months ago

I think it was the quality of the meat. Not enough marbling as Pierino and HalfPint have said. It's not a question of it "being" a prime rib, it's a question of the rating of the quality of meat. Should be Choice or Prime.
Anything inspected but not rated should not be used as you have no guarantee.

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