How Long to Cook Baked Potato
Whole russet or Idaho potato baked in the oven or microwave.
The Short Answer
In the oven at 400°F, baked potato takes 45–60 minutes. The USDA-recommended safe internal temperature is 210°F, verified with an instant-read thermometer in the thickest part. Scroll down for all cooking methods, detailed instructions, and tips from the Professor.
Always verify with an instant-read thermometer inserted into the thickest part.
Cooking Methods
🔥 Oven
Temperature: 400°F
Time: 45–60 minutes
Rest: 5 minutes
Pierce potato several times with a fork. Place directly on oven rack. Rub with oil and salt for crispy skin. Done when a fork slides in easily.
💨 Air Fryer
Temperature: 400°F
Time: 35–45 minutes
Rest: 5 minutes
Pierce with a fork. Rub with oil and salt. Flip halfway through.
⚡ Instant Pot / Pressure Cooker
Pressure: High
Time: 12–15 minutes
Release: Quick release
Medium potatoes: 12 minutes. Large potatoes: 15 minutes. Place on trivet with 1 cup water. Potatoes are done when a knife slides through easily. No need to wrap in foil.
Do not wrap potatoes in foil for baking. Foil steams the potato instead of baking it, resulting in soggy skin. Oil and salt directly on the skin produces the crispiest result.
Frequently Asked Questions
No. Foil traps steam and gives you a soggy skin. For crispy skin, bake the potato directly on the oven rack with oil and salt rubbed on the outside.
When a fork or knife slides into the center with little resistance. The internal temperature should reach about 210 degrees F.
The Bottom Line
Baked Potato is straightforward to cook when you know the time and temperature. The most important number to remember is 210°F internal. An instant-read thermometer is the only reliable way to confirm doneness; color and firmness are not accurate indicators. Use the method that fits your equipment and schedule, and always let the food rest before cutting or serving. Resting allows juices to redistribute and carryover cooking to finish the job.
Source: Culinary reference | Last verified: March 19, 2026 | Our methodology