Baked potatoes wont reach internal temp above 200 degrees.
Want 210 degree internal temp. At high altitude ~6500', oven at 425. 2 medium russet potatoes, poked with a fork, lightly oiled and salted on center of middle rack. Room temp to 200 degrees, 1 hour. 200 degrees for 45 minutes. Couldn't wait any longer. This is the 3rd time this has happened. Oven door never opened, temp monitored with leave in digital food thermometer then checked when removed with Thermapen to check functionality of leave in thermometer, both read 200.
i want to be sure i understand this. these two potatoes cooked in a 425 oven for nearly two hours and the internal temp never got above 200 degrees?
and they were at room temp when you started baking them?
were the potatoes cooked after all this time or were they still hard?
have you thought about inserting a clean long nail into the potatoes to transfer the heat?
I've never taken a spud's temp. When it gives when squeezed, it's done. But you can get the largest available construction nails from a home center/lumberyard. Wash, then poke all the way into the potato lengthwise before baking. This conducts heat into the center. You can buy a rack that will do 4 upright spuds at once, but it's something else to take up storage space.
If your potatoes are taking too long to bake, par-cook them in the microwave first to bring them up to cooking temperature and then they'll roast/bake much faster...