Originally Posted by gcgang
Similar for us. 7.5# Prime Bone in ($110 at Costco!). Ended up a little underdone, as I was paranoid about burning such an expensive piece of meat, and the meat thermometer was giving varied readings on different sides of the meat. I don't really like our oven. But truly, " like buttah".
French dips today, after I figure out how I'll cook the most underdone parts a little more
I feel your paranoia and frustration - esp w/ thermometers.
I actually had to return my Thermapen after several unsatisfactory grilling sessions - turns out it was not fast or accurate after deciding to run my own tests.
I trusted the Thermapen to give accurate readings within 3-4 seconds, but the one I returned was much slower - taking up to 9 seconds.
The new one works as advertised - which I use when doing steaks.
But for a big roast - I rely on the constant reading probe via a long cable to a base unit and a remote to know the temp where ever I am in the house.
No need to open the oven to probe the meat.
Would love to know what you come up with for the underdone pieces you have.