The fridge and freezer are among the most energy-intensive appliances in a home. Although the ideal temperature may vary depending on the type of food being stored and personal preferences, knowing how to identify it is essential to save energy.


The ideal temperature  of the fridge is between 3 and 4 degrees Celsius, although it will depend on the capacity of the fridge. The emptier it is, the less cold it will need and vice versa. Keeping the fridge at this temperature helps prevent the growth of bacteria and ensures that perishable food is kept safely.

As for the freezer, the recommended temperature is -18 degrees Celsius.It is important to ensure that  the freezer is cold enough to ensure that frozen food remains in good condition and safe for long-term consumption.

What recommendations can you keep in mind to save energy using your fridge and freezer?

  • Avoid opening the door unnecessarily: Every time you open the fridge or freezer door, warm air comes in, requiring more energy to cool the inside again. Try to open the door only when necessary and be quick to do so.
  • Defrost the freezer regularly: If ice accumulates in the freezer, it must be thawed to maintain its efficiency. A freezer with accumulated ice consumes more energy.
  • Keep your door seals in good shape: Rubber seals on fridge and freezer doors should be in good condition to prevent cold air from leaking. If the seals are damaged, replace them.
  • Look at the energy label: one point that will directly influence energy savings is the energy label. Until 2021, we could see on the labels of appliances: A+++, A++, A+, A, B, C, D. But, since March 2021, it has been modified, so that the user has a clearer idea of which appliances are more efficient: A, B, C, D, E, F, G. In this way, what would previously be equivalent to an A++, becomes a B.

By following these guidelines, you can keep your food safe while reducing the energy consumption of your fridge and freezer.

Want to know more about energy saving? Go to the Nara Solar news section and find all related articles.