How can baked potatoes be prevented from becoming tough?

If you bake a potato such that one side is touching the sheet pan, you will get a hard area on the potato, and the cooking may be uneven. Put a narrow wire rack inside of a baking sheet that has a rim around it. Place the potatoes in a single layer, side by side, and then transfer the pan to the oven. Before shutting the door of the oven, you should check to see that there is some space between each potato.