
Oven calibration is the process of adjusting your oven's temperature settings to ensure accuracy. This is usually a simple task that can be done in less than an hour and can help ensure that you get consistent results when cooking. If your oven is off by more than 30 degrees, you will likely need to call a technician, but if it's within that range, you can calibrate it yourself. The first step is to check your oven's temperature using an oven-safe thermometer, and if it's off by 15 degrees or more, you'll need to calibrate it. The calibration process will depend on the type of oven you have, but for older electric ovens with analog controls, you will need to remove the temperature knob and turn the screw(s) clockwise or counterclockwise to adjust the temperature. For digital ovens, you can usually access a calibration mode through the keypad and use the arrows to adjust the temperature.
| Characteristics | Values |
|---|---|
| When to calibrate | When food is coming out over or undercooked, or the oven isn't baking evenly |
| When not to calibrate | If the oven temperature is off by 100°F or more, do not attempt calibration yourself |
| Oven calibration process | Place a rack in the centre of the oven, centre an oven-safe thermometer on the rack, set the oven temperature to 350°F, wait for the oven to preheat, check the thermometer's reading, calibrate if the reading is 15°F above or below 350°F |
| Calibration methods | For ovens with a dial knob, pull the knob off the thermostat and turn the screw(s) clockwise to decrease the temperature or counterclockwise to increase it; for digital display ovens, access "calibration mode" through the keypad and use arrows to adjust the temperature |
| Calibration tips | Check the owner's manual for specific instructions, calibrate your thermometer first, check the oven gasket for tears if the oven is still off by more than 15°F after calibration, only self-calibrate if the temperature is off by 20°F or less |
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What You'll Learn

When to calibrate your oven
Oven calibration is a simple process that involves adjusting your oven's temperature settings for accuracy. This ensures you get the desired results when baking or roasting. While some variation in temperature is normal, you should calibrate your oven if the temperature deviates significantly from the set point.
Ovens can be calibrated using an oven thermometer, which can indicate whether the oven's temperature matches its settings. To test the temperature, centre an oven rack and place an oven thermometer in the middle of the rack. Preheat the oven to 350°F and wait for it to signal that preheating is complete. If the thermometer reads a temperature 15°F above or below 350°F, your oven needs calibration.
It is recommended to check and calibrate your oven annually. Older ovens tend to be less accurate as they accumulate wear and tear, and you may need to recalibrate them more frequently. If this is the case, it may be time to consult a repair technician.
If your oven is consistently producing undercooked or overcooked food, it may be time to calibrate. This is especially true if you notice your dishes are not baking evenly, or if your oven is taking longer or shorter than expected to cook your food.
In most cases, you can calibrate your oven yourself, whether it has analog or digital controls. However, if the temperature is off by more than 30°, it is best to contact a technician for assistance. Gas ovens with analog controls should also be calibrated by a certified professional due to safety concerns.
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How to calibrate an oven with analogue controls
Oven calibration is the process of adjusting your oven's temperature settings to ensure accuracy. This process can be done in less than an hour and is a great way to make sure you get the most out of your oven when baking or roasting. If your oven is producing the results you are looking for, no additional adjustment is necessary. However, if your food is coming out over or undercooked, or your oven isn't baking evenly, you might need to calibrate it.
Firstly, you should test your oven's temperature. Place a rack in the centre of the oven cavity and centre an oven-safe thermometer on the rack. Then, close the oven door. Set the oven temperature to 350°F and keep the thermometer in the oven during preheating. Do not open the door during this step to prevent inaccurate temperature readings. Wait for the oven to completely preheat, indicating it has come to full temperature. Check the thermometer's reading through the oven door. If your oven door does not have a window, open the door and check the temperature before closing it quickly. If the oven thermometer shows a reading that is above or below 350°F by 15°F or more, you will need to calibrate your oven.
If your oven has analogue controls, you will also need a Phillips-head screwdriver. To calibrate an oven with analogue controls, pull the temperature knob off your oven thermostat. Locate the screw(s) on the back. Turn the screw(s) clockwise to decrease the temperature and counterclockwise to increase the temperature.
It's important to remember that every oven is different, so it's best to check the owner's manual for your particular oven. If your oven is off by more than 20°F, you should not attempt to calibrate it yourself and should instead call a technician.
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How to calibrate an oven with digital controls
Calibrating an oven with digital controls is a simple process that can be done in less than an hour. It is a great way to ensure you get consistent results when baking or roasting. Here is a step-by-step guide on how to do it:
Firstly, you need to check if your oven's temperature is off. The best way to do this is by using an oven thermometer. Place an oven rack in the centre of your oven and hang the thermometer from the middle-front area of the rack. Set the oven to 350°F and wait for it to signal that the preheating is finished. Check the thermometer's reading through the oven door. If your oven door does not have a window, open the door quickly to get a reading. If the thermometer shows a reading that is above or below 350°F by more than 15 degrees, you will need to calibrate your oven.
If your oven has a dial knob, you can pull the knob off the thermostat and locate the small set screw in the middle. Use a pair of pliers to turn it slightly - turn it clockwise to lower the temperature and counterclockwise to increase it. Be careful, as a small change can make a big difference in the oven temperature.
If your oven has a digital display, you can adjust the temperature using the keypad. Typically, you will need to hold down one or two buttons to access the "calibration mode" and then use the arrows to adjust the temperature as needed. Refer to your oven's manual for specific instructions, as each model is different.
Once you have adjusted the temperature, save your settings by pressing "Start" or following the instructions in the manual. It is recommended to check and calibrate your oven annually, as older ovens tend to be less accurate due to wear and tear.
Note: If your oven is off by more than 15 degrees Fahrenheit after calibration, there may be another issue, such as a tear in the oven gasket or a problem with the sensor, thermostat, or fan. In such cases, it is best to contact a local oven repair technician for assistance.
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How to identify if your oven needs calibration
Oven calibration is a simple process that can help you get consistent results when baking or roasting. It is a way to ensure the accuracy of your oven's temperature settings. Sometimes, ovens are designed to run slightly cooler or warmer than the temperature displayed on the thermostat. If you feel that your oven temperatures may not be accurate, your oven may need to be calibrated.
- If you are using a new oven or if you notice your dishes are coming out overcooked or undercooked, or if your oven isn't baking evenly, you might need to calibrate it.
- If your oven is giving you cold food, you might want to calibrate its temperature.
- If you notice that your food is coming out undercooked or overcooked, your oven may need to be calibrated.
- If your oven has an electronic control, it should have a setting to adjust the calibration.
- If you've baked biscuits for the correct amount of time and they aren't evenly browned, your oven may need calibration.
- If your oven is not heating correctly, you may want to take a few readings with an oven thermometer to get a sense of why.
- If your oven is not reaching the set temperature, you can calibrate it by adjusting the temperature settings.
It is important to note that every oven is different, so it is always a good idea to check the owner's manual for specific instructions on how to calibrate your oven.
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What to do if your oven is way off the desired temperature
If your electric oven is way off the desired temperature, there are a few things you can try before considering professional repair. Firstly, it is important to determine whether the oven is faulty or simply needs calibration. Calibration is a simple process of adjusting the oven's temperature settings to ensure accuracy. This can usually be done yourself, and it is recommended that you check and calibrate your oven annually.
To calibrate your oven, you will need an accurate oven thermometer. Place a rack in the centre of the oven and hang the thermometer from the middle of the rack. Set the oven to 350°F and allow it to preheat completely. Keep the oven door closed during this process to avoid inaccurate readings. Once the oven indicates that it has reached the set temperature, check the thermometer's reading. If the reading is more than 15 degrees above or below 350°F, your oven needs calibration.
For ovens with a dial knob, you can usually pull the knob off the thermostat and adjust a small set screw in the middle with a pair of pliers. Turning the screw clockwise will lower the temperature, while turning it counterclockwise will increase the temperature. Digital display ovens typically have a "calibration mode" that can be accessed by holding down one or two buttons, and the temperature can then be adjusted using arrow keys. Always refer to your owner's manual for specific instructions.
If your oven is still not maintaining the desired temperature after calibration, there may be other issues. The problem could be related to the heating element, also known as the bake element. Preheat the oven and observe the heating elements—there should be one at the top and one at the bottom. If they are not glowing brightly and evenly, they may be burned out and need replacement. Tears in the oven gasket can also cause heat to escape, resulting in improper heating.
If you cannot identify the issue, it is recommended to contact a professional repair service. They will be able to diagnose and address any problems with your oven, such as faulty sensors, thermostats, or fans.
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Frequently asked questions
If your food is coming out undercooked or overcooked, you may need to calibrate your oven. You can test this by preheating your oven to 350°F with an oven thermometer placed on a rack in the centre of the oven. If the thermometer reads a temperature 15°F above or below 350°F, your oven is in need of calibration.
Pull the knob off the thermostat and you should see a small set screw in the middle. Use a pair of pliers to turn it very slightly—turn it clockwise to lower the temperature, and counterclockwise to increase the temperature.
Most digital thermostats can be adjusted using the keypad. Typically, you will need to hold down one or two buttons to access the "calibration mode" and then use arrow buttons to adjust the temperature.











































