-Rare 120*-125* Center bright red, pinkish edges
-Medium Rare 130*-135* Center very pink, slightly brown edges -Medium 140*-145* Center light pink, brown edges
-Medium Well 150*-155* Not pink
-Well Done 160* + Brown throughout
I'll fight anyone who tries to cook a Prime Rib like that. If you want meat cooked like that, get a hamburger.