
Calibrating your oven is a simple process that helps you get consistent results when baking or roasting. Oven calibration involves adjusting your oven's temperature settings to ensure accuracy. This is especially useful if your oven cooks dishes unevenly, or if your previous oven ran too hot or too cold. All ovens can be calibrated, whether they are electric or gas, and whether they have analog or digital controls. Calibration is usually explained in your oven's use and care guide, but if your oven is way off, you may need to call a technician.
| Characteristics | Values |
|---|---|
| When to calibrate | When the oven cooks dishes unevenly, or when they are over or undercooked |
| Tools required | An oven-safe thermometer, a screwdriver (if the oven has analog controls) |
| First step | Place a rack in the center of the oven and center the thermometer on the rack |
| Second step | Close the oven door and set the oven temperature to 350° F |
| Third step | Keep the thermometer in the oven and wait for the oven to preheat |
| Fourth step | Check the thermometer's reading through the oven door or quickly open the door to check the temperature |
| Fifth step | If the thermometer's reading is above or below 350° F by 15° F or more, calibrate the oven by following the instructions in the owner's manual |
| Oven types | Electric ovens with analog or digital controls, gas ovens with digital controls |
| Calibration process | For ovens with a numeric touchpad, press the "Bake" button, set the temperature to 550° F, then press "Bake" again within two seconds. For ovens with buttons, press two designated buttons for two to fifteen seconds |
| Notes | The elevation may affect the oven's temperature or baking times |
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What You'll Learn

When to calibrate
Oven calibration is a process that adjusts your oven's temperature settings to ensure accuracy. You should calibrate your oven when you notice that your dishes are coming out overcooked or undercooked, or if your oven isn't baking evenly. If you have a new oven, you may also want to calibrate it if you suspect it is running hotter or cooler than you would like.
Before calibrating, it is important to check the current working temperature of your oven. This can be done by placing an oven thermometer in the centre of the middle rack and setting the oven to 350°F (180°C). Wait for the oven to finish preheating and then check the temperature on the thermometer. If your oven doesn't have a window, quickly open the door to check the temperature.
If the temperature reading is more than 15°F (10°C) off, or if the offset is greater than 35°F, you should calibrate your oven. For digital ovens, this can often be done by accessing a "calibration mode" through a combination of button presses. However, if the temperature is way off, you may need to call a technician as it may be a sign of a more serious problem.
It is important to note that the calibration process may vary depending on the make and model of your oven, so it is always best to refer to your oven's instruction manual for specific instructions.
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How to check temperature accuracy
Calibrating your oven is a simple process that helps you get consistent results when baking or roasting. It involves adjusting your oven's temperature settings to ensure accuracy. You should calibrate your oven if it cooks dishes unevenly, or if your dishes are coming out over or undercooked.
To check the temperature accuracy of your oven, you can use an oven thermometer. First, place an oven rack in the centre of your oven, then hang an oven thermometer from the middle-front area of the rack. Next, preheat your oven to 350°F and wait for it to signal that the preheating is complete. Ideally, you will be able to see through the oven door to check if the thermometer reading matches the desired temperature. If not, quickly open the door to get a reading and see if your oven is under or overheating. If your oven doesn't have a window, you will need to do this anyway. If your thermometer reads a temperature 15°F above or below 350°F, your oven needs calibration.
If you don't have an oven thermometer, you can test your oven's temperature by baking refrigerated biscuits on a cookie sheet. Follow the instructions on the package closely, including oven rack placement. If you've baked them for the correct amount of time and they aren't evenly browned, your oven may need calibration.
Another way to check the accuracy of your oven is to find the halfway point of each cycle and average these points. This average should be within 25 degrees of the set point.
Once you have established that your oven temperature is inaccurate, you can calibrate it by following the instructions in your owner's manual.
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How to calibrate without a thermometer
Calibrating your oven helps you get consistent results when baking or roasting. You may need to calibrate your oven if your food is coming out undercooked or overcooked. Ovens heat in cycles, so it's normal for the temperature to fluctuate a little. It's when the temperature is off by more than 10 degrees that you need to make adjustments.
To calibrate your oven without a thermometer, you can bake a tube of refrigerated biscuits on a shiny cookie sheet. Follow the packaging instructions carefully, including where to place the oven rack. If the biscuits are not finished or evenly browned after the instructed amount of time, your oven may be in need of a temperature calibration.
If you think your oven is in need of calibration, you can also try the following method:
- Place a rack in the centre of the oven.
- Set the oven temperature to 350°F (177°C).
- Allow the oven to heat for at least 20 minutes.
- Take a temperature reading.
- Keep taking readings every 20 minutes for about two hours or no less than four readings.
- Calculate the average temperature from all your readings by adding them together and dividing the total by the number of readings taken.
- The result should be around the same value as your oven setting, with a variance of less than 10°F (6°C) either way.
- If your calculations tell you that your oven is heating at 365°F when set at 350°, you should readjust the calibration offset by -15° to lower the temperature.
If your oven is in need of calibration, you can refer to your oven's use and care guide for instructions on how to calibrate it. If your oven is gas with analog controls, it may require more expertise, and you should contact a certified technician to assist you.
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Oven calibration with digital controls
Oven calibration is a simple process that helps you get consistent results when baking or roasting. It involves adjusting your oven's temperature settings to ensure accuracy. This is especially useful if your oven cooks dishes unevenly, or if your previous oven ran too hot or too cold.
First, place a rack in the centre of the oven cavity and centre an oven-safe thermometer on the rack, then close the door. Set the oven temperature to 350° F and wait for the oven to preheat completely. Do not open the door during this step to prevent inaccurate temperature readings.
Once the oven is preheated, check the temperature on the thermometer by looking through the oven door or window. If your oven door does not have a window, quickly open the door and check the temperature before closing it again. If the thermometer reads a temperature 15° F above or below 350° F, your oven needs calibration.
To calibrate your oven, follow the instructions in the owner's manual. Typically, you will access a "calibration mode" by holding down one or two buttons, and then use arrow keys to adjust the temperature as needed.
For most models, you can initiate the calibration process by pressing two buttons simultaneously for between two and fifteen seconds. For example, press the "Bake" button, set the temperature to 550°F (287°C), and then press "Bake" again within two seconds. A double-digit display will appear to confirm that you are in calibration mode.
If your oven has a touchpad or knob on the control panel, you can manually set the temperature by inserting three digits on the ERC (Electronic Range Control) screen or turning the knob to the right temperature marking.
Note that ovens with a control board can have an acceptable variation of up to 25 degrees from the set point. It is also important to remember that the elevation you are at may affect your oven's temperature or baking times.
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Oven calibration with analog controls
Oven calibration is a simple process that ensures your oven's temperature settings are accurate. This is important for getting consistent results when baking or roasting.
If your oven has analog controls, you will need an accurate oven thermometer and a screwdriver. A Phillips head screwdriver is recommended.
First, place a rack in the centre of the oven cavity, where food is usually placed for baking. Then, centre an oven-safe thermometer on the rack and close the oven door. Set the oven temperature to 350°F (180°C). Keep the thermometer in the oven with the door closed during preheating. Do not open the door during this step to prevent inaccurate temperature readings.
Once the oven has finished preheating, check the temperature on the thermometer by looking through the oven door. If your oven door does not have a window, quickly open the door and check the temperature before closing it again. If the thermometer shows a reading that is above or below 350°F by 15 degrees or more, your oven needs calibration.
To calibrate an older electric oven with analog controls, pull the temperature knob off the oven thermostat and locate the screw(s) on the back. Turn the screw(s) clockwise to decrease the temperature and counterclockwise to increase it. Re-test the oven temperature with an oven thermometer. Remember that analog controls are sensitive, so only turn the screws an eighth of a turn at a time. If you are having trouble turning the screw, use needle-nose pliers to hold the shaft of the knob.
If your oven has a notched disk and a pointer at the back of the knob, these will be your marks and guides to calibrate your oven. Each marking on the disk usually represents a 10°F (6°C) temperature shift. Make a mark on the disk to keep track of the original setting. Loosen the screws holding the disk in place. If the disk is on the zero mark or the screw is centred within its slot, it is likely still at the factory default setting.
Note that if your oven has a control that is adjustable from a knob on the control panel, the calibration process is much more complicated and risky and should only be done by a certified technician.
It is important to remember that every oven is different, and specific instructions for your oven model may be found in the owner's manual.
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Frequently asked questions
Oven calibration helps you get consistent results when baking or roasting. It ensures that your oven's temperature settings are accurate.
If your oven cooks dishes unevenly, or your dishes are coming out over or undercooked, your oven may need calibrating. You can test this by using an oven thermometer or baking refrigerated biscuits on a cookie sheet and checking if they brown evenly.
Place a rack in the centre of the oven and hang an oven thermometer from the middle-front area of the rack. Set the oven temperature to 350° F and wait for it to preheat fully. Check the temperature on the thermometer. If the thermometer reads a temperature 15° F above or below 350° F, your oven is in need of calibration. Follow the instructions in your owner’s manual to adjust the temperature accordingly.
Pull the knob off the thermostat and locate the small set screw in the middle. Use a pair of pliers to turn it clockwise to lower the temperature or counterclockwise to increase the temperature.
The calibration process may vary depending on the make and model of your oven. For example, some ovens require you to press two buttons simultaneously to enter calibration mode. Always check your oven's user manual for specific instructions.











































