A jacket potato usually takes about 1 to 1½ hours in a hot oven, depending on size and temperature.

Core timing guide

  • At 200–220°C (400–425°F), medium baking potatoes (about 250–300 g) take roughly 1 hour for soft, fluffy insides and crisp skin.
  • Very large potatoes can take up to 1½–2 hours at similar temperatures to become fully tender.
  • The potato is done when a skewer or sharp knife slides into the middle with almost no resistance. The skin should feel firm and crisp.

Simple oven method

  1. Heat the oven to 200–220°C (400–425°F). Place a tray in to preheat.
  1. Scrub potatoes, dry well, then prick them several times with a fork so steam can escape.
  2. Rub with a little oil and salt, then place directly on the oven shelf or hot tray.
  3. Bake 1 hour, then check; if the center still feels firm, continue baking in 10–15 minute bursts until very soft inside.

Faster “cheat” version

  • Microwave the potato for about 8–10 minutes on high (for a medium potato), turning once, until just tender inside.
  • Transfer to a 200°C oven for about 8–15 minutes to crisp the skin.

Forum-style tips people share

  • Many home cooks like a slightly lower oven (around 180–190°C) for 1¼–1½ hours for an extra fluffy interior.
  • Others swear by part-microwaving then finishing in the oven or air fryer to balance speed and a crispy skin.

Bottom note: Information gathered from public forums or data available on the internet and portrayed here.