For digital thermometers: Test every six months or so (depending on frequency of use) to make sure that the thermometer works properly, using either the ice water or boiling water method.

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.

Indispensable as it may be, a thermometer is only as good as its accuracy. Calibration is key. For quick tips on dial and digital thermometers, check out these tips: For dial thermometers: ...

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 ...

Where food safety is concerned, a food thermometer is kind of like the Swiss army knife. It’s a must-have, multi-use tool in the kitchen.

This digital thermometer circuit diagram uses a common 1N4148 diode as the temperature sensor. The temperature coefficient of the diode, -2 mV/°C is exploited for this application to create an ...