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1 When baking more than one potato, choose potatoes that are the same size, so they finish baking at the same time.  Preheat the oven (see table below). You can bake your potatoes at different temperatures, ranging from 400 degrees Fahrenheit (204.4 degrees Celsius) to 325 degrees Fahrenheit (162.7 degrees Celsius).
Here are answers to frequently asked questions about cooking times for baked potatoes. How Long To Bake A Potato. Bake a potato for 45 minutes, in the oven at 400Â°. Clean the potato thoroughly, wrap it in foil, vent it with a fork 5 times, and place it on a cookie sheet or directly onto the oven rack. To test that your potatoâs properly cooked, poke it with a toothpick to check for tenderness.