A jacket potato typically takes about 45 to 60 minutes to bake in the oven. The common method is to preheat the oven to around 400°F (200°C), scrub the potato clean, poke holes with a fork, rub it with oil and salt, and bake it directly on the oven rack or a baking tray until the skin is crisp and the inside is soft. The exact baking time can vary depending on the size of the potato, but generally falls within this range. To check doneness, a fork should slide easily into the potato, or the potato should feel soft when gently squeezed (be careful—it's hot). Some recipes recommend baking for an hour to an hour and 15 minutes for extra crispy skin. Ovens with fan settings or higher temperatures (e.g., 425-450°F) may require slightly less time but still generally fall under an hour. Microwaving can be used for faster cooking but yields a less crispy skin. For the best crispy skin and fluffy interior, baking for 45 to 60 minutes in the oven is recommended.

Actionable tips:

• Preheat oven to 400°F (200°C).
• Pierce potato with a fork to allow steam to escape.
• Rub with oil and salt for crispy skin.
• Bake directly on oven rack or baking tray.
• Bake 45-60 minutes depending on size.
• Check doneness with fork or gentle squeeze.

This method will give you a classic jacket potato with a crisp skin and soft, fluffy interior suitable as a side or a hearty meal base.