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The accuracy of the fridge thermometers tested was generally good, with the majority of devices measuring fridge air temperatures to within ±0.5°C of the actual fridge temperature (as indicated by a calibrated, rapid response temperature measurement device).
Consequently, where should I put my fridge thermometer?
Your refrigerator temperature should be 40 F or less, and your freezer should be 0 F or less. The best place to put a thermometer is in the warmest spot – which would be near the door, not tucked away in the back. Glance at this daily to be sure it is maintaining a cold temperature.
- Editor's Choice. Unigear Two Pack Digital Temperature Sensors.
- Best Commercial. Unigear Digital Combo Thermometer.
- Best For Freezers. Taylor Classic Series Large Dial.
- Best All-Purpose. BetyBedy Digital Thermometer.
- Best Wireless. AcuRite Refrigerator Thermometer.
- Best For Wine. Wine Thermometer with Clip by Franmara.
Then, how long does a fridge thermometer take to work?
Close the door and wait at least 12 hours to allow the thermometer to get a reading. When you make an adjustment to the temperature of the refrigerator or freezer, you should give it at least 24 hours for the new setting to stabilize before taking another reading.
A thermometer is the only reliable way to check the temperature. Place a refrigerator thermometer in the center of the middle shelf (not on the door). And remember to check it often to make sure the temperature is right.