A baked potato takes from 45 minutes if the potato is small.
It can take up to an an hour if the potato is bigger.
Remember to clean the potato under running water and remove any dark or green spot (and if possible use another one).
Then, poke a few holes in the potato before you bake it. Also, you can rub the potato with a little olive oil, then wrap it in foil, and bake at 350 degrees F (177° C) for about an hour.
How to know if the baked potato is done?
Just poke the potato with a fork or knife and, if it slides in easily, then it’s done.