How Long to Cook a Baked Potato at 300°F

A baked russet potato cooked at 300°F (150°C) usually takes about 1 hour 45 minutes, with larger potatoes needing closer to 2 hours. The low oven temperature gives the inside time to turn tender while the skin dries; serve the potato split open with butter, salt, and your favorite toppings.

Ingredients

4 medium russet potatoes, about 8 oz (225 g) each
1 tablespoon (15 ml) neutral oil, such as canola or avocado oil
1 teaspoon (5 g) kosher salt, or ¾ teaspoon (4 g) fine salt
2 tablespoons (28 g) butter, for serving, optional
½ cup (120 g) sour cream, for serving, optional
2 tablespoons (6 g) finely sliced chives, for serving, optional
¼ teaspoon (0.5 g) freshly ground black pepper, or to taste, optional

Instructions

Heat the oven. Set a rack in the center of the oven and preheat to 300°F (150°C). If your oven tends to run hot or cool, check its temperature with an oven thermometer; a difference of even 15–20°F (8–11°C) can change how long the potatoes take. Set a small rimmed baking sheet on a lower rack if you want to catch any salt or oil that falls, but bake the potatoes directly on the center rack for better air circulation.
Prepare the potatoes. Scrub the potatoes under cool running water, removing any dirt from the eyes and creases. Pat them thoroughly dry with a clean towel. Use a fork to prick each potato six to eight times, spacing the holes around its surface. These small vents let steam escape as the potato heats. Do not peel the potatoes: the skins help hold the shape and become pleasantly dry in the oven.
Oil and season. Rub each dry potato with a thin coating of oil, then sprinkle the salt evenly over the skins. The oil helps the salt adhere and encourages a more flavorful, lightly crisp exterior. You do not need to coat the potatoes heavily; too much oil can make the skins greasy rather than dry. Place them directly on the oven rack with a little space between them.
Bake until tender. Bake medium potatoes for about 1 hour 45 minutes. Start checking at 1 hour 30 minutes, since potato size and oven accuracy affect the timing. Carefully squeeze one with an oven mitt or thick towel: it should give easily, and a thin skewer or paring knife should slide into the center without meeting a firm, hard spot. If the center is still resistant, return the potato to the oven and check again after 10–15 minutes. Potatoes closer to 10–12 oz (285–340 g) each can take around 2 hours or a little longer.
Rest and serve. Transfer the potatoes to a plate or board and let them rest for 5 minutes. Cut a lengthwise slit through the top, then press the ends gently toward the center to open the potato and loosen the fluffy interior. Add butter, sour cream, chives, and pepper if desired, and serve while hot.

Tips

Choose potatoes of similar size. Four potatoes that are close to the same weight are more likely to finish together. A small potato may be tender well before a large one, so remove individual potatoes as they are ready rather than waiting for every potato to match the same exact minute.
Keep the skins dry. Water left on the surface can make the skin soft. Dry the potatoes before oiling, and avoid wrapping them in foil if you want a dry, lightly crisp skin. Foil traps moisture and steams the potato instead.
Use another oil if needed. Canola, avocado, or light olive oil all work in place of one another. Extra-virgin olive oil has a stronger flavor, while melted butter can brown more quickly; for this long bake, oil is the simpler coating. If you prefer a plain skin, skip the oil and salt the potato after baking.
Do not judge by the clock alone. The potato’s diameter matters more than its label as medium or large, and a crowded oven can slow baking. Test the center with a skewer, and add time in short increments rather than raising the oven temperature to rush it.

Serving Suggestions

For a simple side, split each potato and let butter melt into the center, then add salt, black pepper, and sliced chives. Sour cream adds a cool, tangy contrast; plain Greek-style yogurt can stand in for it, with a slightly tangier and thicker result. A little grated cheddar, crumbled bacon, or sliced scallion makes the potato more substantial. Add cheese while the potato is hot so it softens from the residual heat.

Build a filling meal by topping the potato with cooked broccoli and cheese, sautéed mushrooms, or leftover chili. Keep wet toppings modest at first so the fluffy center does not become watery. If serving several people, set out toppings in small bowls and let everyone season their own potato. For a dairy-free serving, use olive oil or a plant-based butter instead of butter, and choose a dairy-free topping or salsa in place of sour cream.

Variations

Plain baked potatoes: Leave off the oil and salt before baking, then season the opened potato at the table. The skin will be less seasoned and may be drier, but the inside will still become tender. This is a useful option if you plan to use the potato in another dish, such as potato salad or a filling for soup.

Herb and garlic finish: Stir a small minced garlic clove and 1 teaspoon (about 1 g) chopped rosemary or thyme into the butter before adding it to the hot potato. Fresh garlic can taste sharp if used too generously, so keep the amount modest. Chopped parsley works as a milder alternative.

Loaded potato: Add ¼ cup (28 g) shredded cheddar, 2 tablespoons (30 g) sour cream, and 1 tablespoon (10 g) sliced scallions per potato. You can also use cooked bacon pieces, but add them after baking so they remain crisp. For a meat-free version, try black beans and salsa; drain the beans well so the topping does not soak the potato.

Sweet potato option: You can use the same oven temperature and a similar method with medium sweet potatoes, but their shape and size affect the bake time, so check each one for tenderness rather than assuming it will finish at the same moment as a russet. Sweet potatoes have a sweeter, softer flesh and pair well with butter, cinnamon, or a savory topping of black beans and scallions.

Storage and Reheating

Refrigerate leftover baked potatoes within 2 hours of cooking. If they were wrapped in foil, remove the foil before refrigerating; do not leave foil-wrapped potatoes at room temperature. Store the potatoes in a covered container and use them within 3–4 days. For the best texture, keep toppings such as sour cream, chives, and bacon separate and add them after reheating.

To reheat one potato, cut it in half and microwave it on a microwave-safe plate, covered loosely, until steaming hot throughout; the time depends on its size and your microwave, so turn or rearrange the halves as needed. For a drier skin, warm it in a 350°F (175°C) oven for about 15–25 minutes, checking that the center is hot. Reheat leftovers to 165°F (74°C), as measured with a food thermometer. A potato that has been cut open reheats more quickly, though the skin may soften.

You can also scoop cold potato flesh into a pan for hash or mash it with a little milk and butter. Keep cooked potato dishes refrigerated and use them within the same 3–4-day window. Discard leftovers that have been left at room temperature for more than 2 hours rather than trying to make them safe by reheating.

Frequently Asked Questions

Is 300°F hot enough to bake a potato?
Yes. A potato bakes at 300°F (150°C), but the lower temperature means it needs longer than it would in a hotter oven. Allow about 1 hour 45 minutes for medium russets and check for tenderness; large potatoes may need close to 2 hours or more.

How can I tell when a baked potato is done?
Press the potato gently with an oven mitt: it should yield easily. You can also push a thin skewer or paring knife into the thickest part. It should pass through with little resistance, without finding a firm center. Check more than one potato if their sizes differ.

Should I wrap the potato in foil?
No foil is needed for this method. Foil holds steam against the skin, which makes it softer rather than dry and lightly crisp. Baking directly on the rack allows hot air to circulate around the potato. If you prefer a soft skin, foil is a texture choice, but it does not make the potato cook faster.

Can I bake potatoes at 300°F ahead of time?
You can bake them ahead, then refrigerate them within 2 hours and reheat them when needed. For the best skin, reheat in the oven rather than the microwave. Avoid keeping cooked potatoes warm at room temperature for an extended period, and do not leave them wrapped in foil on the counter.

Why is my baked potato still hard after the suggested time?
It may be larger or thicker than the potatoes used to estimate the timing, or your oven may be running below its set temperature. Put it back in the oven for 10–15 minutes, then test again. If several potatoes remain firm, check the oven temperature with an oven thermometer and make sure the rack is not crowded.

Can I cook more than four potatoes at once?
Yes, as long as they fit in a single layer with space around them. A full oven may take longer to recover its temperature, and large potatoes placed close together can slow air circulation. Keep the oven at 300°F (150°C), allow extra time if needed, and judge each potato by its tenderness instead of relying only on the recipe’s estimate.

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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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