To calibrate using ice water, place the thermometer stem in a bowl or glass of ice water, careful that the sensor (the tiny dimple along the side) is completely submerged.

With the thermometer inside the oven, set it to the desired temperature, and once it's finished pre-heating, check that the reading on the thermometer matches. If it doesn't, you need to calibrate ...

But as of today the federal government has more or less killed the mercury thermometer in the United States—NIST has announced it will no longer calibrate mercury thermometers.

The best meat thermometers are accurate and lightning fast. We tested 12 of the top models, including digital, instant-read, and grill thermometers.

Before using the thermometer on Thanksgiving morning, calibrating the thermometer is an important step to take. Many food thermometers have a calibration nut under the dial that can be adjusted.

5. While taking care not to burn yourself, quickly take the thermometer out of the boiling water and turn the “calibration nut” with a wrench so the needle reads 100C. 6.

If you have a standard pocket cooking thermometer you may have noticed it has a hexagonal nut on the reverse side of the dial, which allows for easy calibration. Use a cup of ice water to make ...

To calibrate using boiling water, place the thermometer stem in a saucepan of boiling water, careful that the sensor (dimple) is completely submerged.