From website:
"The pressure cooking time depends on the size of your potatoes. I have tested out lots of different potatoes of varying sizes to determine these cook times. It is important to cook potatoes that are roughly the same size so that they will cook in the same amount of time.
Small Potatoes (2 – 2 1/4 inches wide): 12 minutes at high pressure plus 10 minutes natural pressure release
Medium Potatoes (2 1/2 inches wide): 16 minutes at high pressure plus 10 minutes natural pressure release
Large Potatoes (3 inches wide, pictured in my hand above): 20 minutes at high pressure plus 10 minutes natural pressure release
When I’m not sure about the cook time for my exact size of potatoes, I always err on the side of adding an extra minute or two to the cook time. I’d rather end up with softer potatoes than under-cooked potatoes and have to do a second pressure cooking cycle."
