First time Prime Rib question

[Roostershooter]

I plan on smoking a prime rib for the first time for the upcoming holidays.  I have a roast that is boneless and a little over 4 pounds.  I will be smoking at 200 degrees until IT hits 128.  How much time should I allow for this roast to be done?  Thanks in advance.

 

[SuperDave]

I usually cook mine just a tad hotter and they take +/- 45 minutes a pound.  At 200, I'd think that you would be very close to an hour a pound. 

 

[Roostershooter]

Ok, thanks alot.  Do you smoke yours at 225?

 

[SuperDave]

Yes. If you have planned for the time correctly, 200 is a great temp.

 

[prudentsmoker]

My theory is this- say you want to cook a turkey. The recipe calls for 3 hours (180 minutes) at 325 and you want to cook it at 200. You simply take the 325 X 180 = 58,500. You take that number and divide it by 200. 58,500/200=292 minutes, new cooking time. I have done this successfully for years.

 

[Roostershooter]

Thanks for the temp conversion.  I will have to try that.

 

[PigPen68]

I did a roast a few weeks ago at 200o and it was almost exactly 1 hr/lb to an IT of 130of.  I also did a reverse sear for 8 min at 550o.

 

[Roostershooter]

Thanks pig, going in smoker tomorrow at 2:30.  Looking forward to results.

 

[nvw-ssv]

See DM's recipe for reverse-sear of Prime Rib.  It will be perfect if you follow his guide.

 

[Roostershooter]

The smoked prime was a huge success!  It took 4 hours and 15 minutes. Did a reverse sear at 500 in the oven.

 

[SconnieQ]

The doneness looks perfect! Yum.