Key takeaways
- Use an oven thermometer to see the real temperature.
- Many ovens let you change the offset in the settings.
- An oven that is off by 25°F or more, again and again, may need a sensor or element repair.
- Never use a damaged or sparking oven.
Recipes only work when the oven is honest. When the display says 350°F but the inside is 325°F or 375°F, dinner suffers. Many ovens drift over time, and most can be adjusted at home.
If the oven will not heat at all, or you have an event and need help fast, we offer emergency and same-day oven repair near you in Palo Alto, 24 hours a day.
What you need
- An oven-safe thermometer, sold in most stores for a few dollars
- A notepad or your phone for the results
- Your oven manual, to find the calibration steps
How to test your oven temperature
- Place the thermometer on the center rack, in the middle of the oven.
- Set the oven to 350°F and let it preheat until the oven signals it is ready.
- Wait another 15 to 20 minutes so the temperature settles.
- Read the thermometer through the window, or open the door quickly and read it.
- Write down the difference. Repeat at 400°F to see if the error changes.
Ovens turn the heat on and off to hold a temperature, so the number can swing 10 to 25°F. Check a few times, and average the results.
How to adjust the setting
Many electric ovens have an offset option. Look for words like calibration, offset, or temperature adjust in the settings. You can usually raise or lower the temperature by up to about 35°F. Follow the steps in your manual, since each brand is different.
If your oven runs 15°F cool, add 15°F to the offset. If it runs hot, subtract. Test again after you change it.
Why ovens drift
- A temperature sensor that has aged
- A worn or weak bake element or igniter
- A door gasket that lets heat leak out
- Heavy use and heat cycles over the years
Baking tips for an uneven oven
- Use the center rack for most baking.
- Rotate pans front to back halfway through.
- Preheat fully, and give it another 15 minutes to settle.
- Use light-colored metal pans for even browning.
- Do not open the door too often. Each peek drops the temperature.
These habits help even a good oven give better results.
Self-clean and oven care
- Remove racks and pans before a self-clean cycle.
- Ventilate the kitchen during a self-clean.
- Wipe spills after cooling so they do not bake on.
- Check the door gasket for tears or gaps.
- If the door will not unlock after a cycle, let the oven cool fully and try again, or call for help.
When to call a technician
Call if the oven is off by 25°F or more, if the offset does not fix it, if the oven takes very long to heat, or if it shuts off during cooking. A technician can test the sensor, the element or igniter, and the control, and fix the real cause. If you smell gas, leave the home and call 911 first.
Our page on oven repair explains what a visit looks like. If you are also comparing cooktops, read gas vs electric vs induction cooktops.
If your appliance needs a professional, call us for emergency or same-day service near you in Palo Alto, 24 hours a day. Learn more on our oven repair page, or call +1 (650) 459-7835.
Quick questions
How do I know if my oven temperature is wrong?
Use an oven thermometer on the center rack, preheat, and compare with the setting. A difference of 25°F or more means a problem.
Can I calibrate my oven myself?
Many ovens have an offset setting. Check your manual. If not, a technician can adjust or repair it.
Why is my oven too hot?
A faulty temperature sensor or control is a common cause.
Should I use my oven if it will not hold temperature?
It is fine for a short time if it is not sparking or smelling. Call a technician for repair, and stop if you smell gas.
