#2 – Testing the temperature of your fridge
If you want to make sure your refrigerator is working at the right temperature, then we suggest buying a refrigerator thermometer.
It might not be as accurate as of the thermocouples that experts use at their labs, but it is close enough and will definitely save you from the bacteria that multiply rapidly when the temperature increases, risking you for many stomach bugs.
Basically, the refrigerator would measure the temperature of the air, but you want to know the temperature of the food, that’s why you should put the thermometer in a cup of water. Leave it for 24h in both the freezer and fridge, then based on the results, fix their temperature.