How Long to Cook a Medium Baked Potato

A medium baked potato takes about 55 minutes in a 425°F (220°C) oven, with a few extra minutes to rest before serving. This simple method uses russet potatoes, a little oil, and salt for crisp skin and a soft, fluffy center; check the potato with a fork because size and oven differences affect timing.

Ingredients

2 medium russet potatoes, about 7 oz (200 g) each
2 tsp (10 ml) neutral oil, such as canola or avocado oil
1/4 tsp (1.5 g) kosher salt, or to taste

For this timing, choose potatoes that are roughly 6 to 8 oz (170 to 225 g) apiece and fairly similar in thickness. Russets are especially suitable because their starchy flesh becomes fluffy, but medium Yukon Gold potatoes also work; their centers are creamier and their skins are usually less crisp. If using a different variety or unusually large potatoes, rely on the doneness checks rather than the clock alone.

Instructions

Heat the oven. Set a rack in the middle of the oven and preheat to 425°F (220°C). Allow about 12 minutes for preheating and preparing the potatoes; if your oven takes longer to heat, let it finish preheating before baking. A fully heated oven helps the skin dry and brown consistently.
Scrub and dry the potatoes. Rinse each potato under cool running water and scrub away any soil with a clean produce brush. Pat them completely dry with a towel. Dry skins roast better than damp ones, and removing surface dirt makes the whole potato ready to eat if you like the skin.
Pierce the skins. Use a fork to make 6 to 8 small holes around each potato, piercing through the skin but not cutting the potato into pieces. These openings let steam escape as the potato cooks. Do not wrap the potatoes in foil: foil traps moisture and tends to produce softer, steamed skin rather than a crisp baked skin.
Oil and season. Rub each potato all over with about 1 tsp (5 ml) oil, then sprinkle with a pinch of the salt. Use only a thin coating; excess oil can make the skin greasy. Set the potatoes directly on the oven rack for the crispest skin, with a rimmed baking sheet on the rack below to catch any drips. Alternatively, place them on a baking sheet for easier handling, though the undersides may brown less.
Bake until tender, about 55 minutes. Bake the medium potatoes for 50 minutes, then check one by pushing a thin knife or skewer into its thickest part. It should slide through to the center with little resistance, and the potato should feel soft when gently squeezed with an oven mitt. If the center is still firm, bake for another 5 minutes and check again. A particularly thick potato may need 60 minutes or a little longer; a smaller one may be ready sooner.
Rest and open. Remove the potatoes carefully and let them rest for 5 minutes. Make a lengthwise slit through the top of each, then press the ends gently toward the middle to open the potato and loosen the fluffy interior. Add toppings while hot and serve.

The key answer is approximately 55 minutes for a medium potato at 425°F (220°C), but doneness matters more than a precise minute. A fork or thin knife should reach the center easily; if it catches or meets a hard spot, return the potato to the oven. If baking several at once, leave space around them so hot air can circulate, and expect a crowded oven or very large potatoes to take longer.

Tips

Pick potatoes of similar size. Potatoes with similar weight and thickness finish at about the same time. If one is noticeably larger, remove the smaller one when tender and continue baking the larger one rather than leaving both in until the biggest is done.
Dry the skin well. Water left on the surface slows browning and can leave the skin less crisp. Oil is optional, but a light coating encourages a more savory, browned exterior. For a no-oil potato, bake it dry and add salt after cooking if you prefer.
Skip foil for crisp skin. Foil is useful if you specifically want a softer skin or need to keep a potato warm briefly, but it holds in steam. For the classic contrast of crisp exterior and fluffy center, bake unwrapped and avoid covering the potato after it comes out.
Use caution with microwaving first. A microwave can shorten oven time, but it softens the skin and makes timing less predictable. If you use one, microwave until the potato is partly tender, then finish it unwrapped in a hot oven until the skin is dry and the center is fully soft. For the simplest consistent texture, use the oven-only method above.

Serving Suggestions

Serve the potato split open with butter and black pepper, or add sour cream, plain yogurt, chopped chives, or grated cheddar. A small amount of salt inside the fluffy center helps bring out the potato’s mild flavor. For a more substantial plate, add cooked beans, steamed broccoli, sautéed mushrooms, or leftover chili. Put wet toppings on just before eating so they do not soften the skin while the potato sits.

For a simple meal, pair one medium potato with a green salad or a bowl of soup. If serving potatoes as a side, one medium potato per person is a practical starting point, though appetite and the rest of the menu matter. Open each potato at the table or just before serving to keep the hot center fluffy instead of letting steam collect inside a closed skin.

Variations

Saltier, crisper skin: Use fine salt or flaky salt lightly over the oiled skin. A coarse salt crust is possible, but it uses more salt and can be unpleasantly salty if eaten in large amounts. For ordinary weeknight potatoes, a small pinch is enough.

Herb and spice finish: Keep the basic baking method, then season the opened potato with smoked paprika, garlic powder, chopped parsley, or dill. Add delicate fresh herbs after baking so they stay bright. A drizzle of olive oil can replace butter, while grated cheese or a spoonful of salsa gives the potato a different, savory finish.

Different potato varieties: A medium Yukon Gold or red potato can be baked the same way, but the texture will not match a russet exactly. Yukon Golds are naturally more buttery and dense, and red potatoes hold their shape more. Start checking them around 40 to 45 minutes, since a smaller, thinner potato may cook sooner than a thick russet.

Storage and Reheating

Let leftover potatoes cool briefly, then refrigerate them within 2 hours of cooking in a covered container. They keep for 3 to 4 days in the refrigerator. For best skin texture, store them whole and add toppings after reheating; a potato that has already been split or topped is still usable, but the skin and center may become softer.

To reheat one potato in the oven, place it unwrapped on a baking sheet at 350°F (175°C) for about 15 to 20 minutes, or until hot throughout. The oven helps the skin recover some crispness. In a microwave, cut or pierce the potato and heat it in short intervals, turning once, until steaming hot; the skin will stay soft. When reheating leftovers, USDA guidance is to bring them to 165°F (74°C), checked with a food thermometer in the center. Do not leave cooked potatoes at room temperature for more than 2 hours.

You can freeze a baked potato, though thawing and reheating usually make its texture softer and more grainy. If freezing, cool it promptly, wrap it well, and freeze for best quality for about 1 month. Thaw in the refrigerator before reheating, and expect the skin to be less crisp than a freshly baked potato.

Frequently Asked Questions

How long does a medium baked potato take at 400°F?
At 400°F (200°C), a medium 6 to 8 oz (170 to 225 g) russet usually needs about 60 to 70 minutes. Begin checking near 60 minutes and continue until a fork reaches the center easily. A lower oven temperature generally takes longer, so use tenderness rather than the estimated time as the final check.

How long does it take at 350°F?
At 350°F (175°C), plan on roughly 75 to 90 minutes for a medium russet, depending on its thickness and your oven. Check the center with a thin knife or skewer. If you are already baking another dish at 350°F, the potato can cook alongside it, but it will take longer than the 425°F method.

How can I tell when a baked potato is done?
Insert a thin knife, skewer, or fork into the thickest part. It should reach the center without a firm or crunchy spot. The potato should also feel soft when gently squeezed with an oven mitt. If the outside looks done but the center resists, continue baking in 5-minute increments.

Should I wrap a potato in foil before baking?
No, not for crisp skin. Foil holds moisture close to the potato and gives the skin a softer, steamed texture. Bake it unwrapped on the oven rack or on a baking sheet. Wrap it only if soft skin is what you prefer, and do not use foil as a way to store a cooked potato at room temperature.

Can I bake a potato without oil?
Yes. Oil is not required for the potato to cook through; it mainly helps the skin brown and adds flavor. Scrub and dry the potato, pierce it, and bake it unwrapped. The skin may be drier and less evenly crisp, so you can add butter or another topping after baking.

Why is the middle of my baked potato still hard?
The potato may be larger or thicker than average, the oven may not have fully preheated, or the oven temperature may run low. Return it to the oven for 5 to 10 minutes and test again at the center. Next time, choose potatoes of similar size and start checking at 50 minutes rather than assuming every medium potato finishes at the same time.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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