Reduce energy consumption
The layer of ice that forms inside the freezer is several centimeters thick and can reduce the efficiency of the motor, making it work harder and therefore consume more energy. This is because the layer of ice acts as a barrier to the flow of heat from the outside environment to the motor, causing it to increase speed to maintain the desired temperature in the freezer. In addition, the thermal resistance of the freezer walls increases, making it more difficult to transfer heat from the outside environment to the inside of the appliance. By eliminating excess ice, the motor works more efficiently and consumes less electricity.
Avoid overheating
Since the layer of ice inside the freezer prevents proper heat exchange with the outside environment, the motor may overheat. If the motor overheats, its efficiency decreases and energy consumption increases. In addition, overheating can damage the motor and shorten the life of the appliance. Therefore, by defrosting the freezer, you prevent the motor from overheating and protect the appliance from damage that can occur due to excessive heat.
Improve storage efficiency
The layer of ice inside the freezer can hinder the circulation of cold air, reducing the absorption capacity of the food. If the cold air does not circulate properly, some areas of the freezer can become warmer than others, creating ideal conditions for bacteria to grow and food to spoil. Removing the accumulated ice ensures better circulation of cold air and therefore better preservation of food, thus avoiding waste.
How often should you defrost your freezer?
The ideal time to defrost the freezer depends on the layer of ice that has formed inside the appliance. In general, it is recommended to carry out this process when the layer of ice has reached a thickness of about 3 to 4 millimeters, since energy consumption can increase by up to 30% at this point. If the appliance is used frequently and a layer of ice forms quickly, it will have to be defrosted more often. On the contrary, with less frequent use, the layer of ice forms more slowly and the defrosting frequency can be reduced.
How to quickly defrost the freezer without unplugging it?