Jacket potatoes (baked potatoes) cooking times
How long to cook jacket potatoes: 1 h to 1 h 15 min in the oven at 200°C (180°C fan), 40–45 min in an air fryer at 200°C, 8–10 min in the microwave and 6–8 hours in a slow cooker. Every way to cook it is below, with the temperature and how to tell it’s done.
How long to cook jacket potatoes
Times are for 1 medium baking potato (250–300 g) each.
| Method | Time | Heat | How |
|---|---|---|---|
| Oven | 1 h to 1 h 15 min | 200°C (180°C fan), 400°F, gas 6 | Straight on the oven shelf. Large potatoes take up to 90 minutes. |
| Air fryer | 40–45 min | 200°C (400°F) | Turn halfway. |
| Microwave | 8–10 min | on full power | One potato; turn halfway. Add 4–5 minutes for each extra potato. Finish in a hot oven or air fryer for 10 minutes for a crisp skin. |
| Slow cooker | 6–8 hours | on low | Wrapped in foil, with no water. 3–4 hours on high. |
| Pressure cooker | 15–20 min | on high pressure | On a trivet with 250 ml water; natural release. Crisp the skins in the oven after. |
Also see: Roast potato and potato times (roast, baked, mashed and Yorkshires).
Before you start
Scrub, dry and prick a few times with a fork. Rub with oil and salt for a crisp skin.
How to tell it’s done
A skewer slides into the middle easily and the skin is crisp.
Questions
How long to cook jacket potatoes in the oven?
1 h to 1 h 15 min at 200°C (180°C fan), 400°F, gas 6. Straight on the oven shelf. Large potatoes take up to 90 minutes.
How long to cook jacket potatoes in an air fryer?
40–45 min at 200°C (400°F). Turn halfway.
How long to microwave jacket potatoes?
8–10 min on full power. One potato; turn halfway. Add 4–5 minutes for each extra potato. Finish in a hot oven or air fryer for 10 minutes for a crisp skin.
How long to cook jacket potatoes in a slow cooker?
6–8 hours on low. Wrapped in foil, with no water. 3–4 hours on high.
How long to cook jacket potatoes in a pressure cooker?
15–20 min on high pressure. On a trivet with 250 ml water; natural release. Crisp the skins in the oven after.
Times are a guide for typical home portions: ovens, air fryers, microwaves and the size of what you’re cooking all vary. Check meat, poultry and fish with a thermometer before serving. Safe temperatures follow USDA and UK Food Standards Agency guidance, last checked 11 November 2026.