Question

how thermometer is calibrated​

Answer 1

Answer:

1. Hold the calibration nut securely with a wrench or other tool and rotate the head of the thermometer until it reads 32˚F.
2. Thermometers should be calibrated regularly to make sure the readings are correct.
3. The ice-point method is the most widely used method to calibrate a thermometer

Answer 2

Many thermometers have a nut under their temperature dial that allows them to be adjusted, while most digital models have a reset button. You’ll want to check the package instructions of your device for exact instructions for calibrating your thermometer.

In rare cases, thermometers can't be calibrated. Even if your thermometer can’t be calibrated, you can—and should—use these methods to check its accuracy and insure that you're getting a proper temperature read on your food. In this case, you can note the degree of inaccuracy and adjust your cooking temperature accordingly. For example, if the thermometer reads 2° higher than it should, always cook your food 2° higher than the recommended temperature on a recipe. Or, in seeing that your thermometer is inaccurate, you could buy a new one.

There are two methods for testing the accuracy of your thermometer and calibrating accordingly: You can calibrate it in extremely high temperatures or using extremely cold temperatures.