How to set the perfect fridge temperature

There is nothing more annoying when you open your fridge your milk is off and there is ice build up.

Your fridge is running inefficiently.

Not only does an inefficient fridge cost you money to run, but it can also spoil your food.

This guide will help you to set your fridge to the ideal temperature.


There is a misconception that the “colder”  a fridge is set, the colder the food will be. Two important facts to remember: Ice is a very good insulator and fridges don’t create cold, they draw heat away.

How ice builds up

By opening and closing a fridge door, you allow moisture to enter. If the fridge is set too cold, the moisture will freeze and build up over time causing ice build up. You will notice this build up if you have broken fridge seals too.

How too much ice spoils your food.

Because ice is an insulator and fridges don’t create cold (they draw heat away) the ice build up will cause your fridge compartment to actually become warmer. Hence an inefficient fridge. This not only spoils your food but it costs you more electricity.

So what temperature setting?

The ideal temperature for a fridge is between 0°C and 4°C which is sufficient to reduce ice build-up and stop bacteria from spoiling food.

This is usually setting number 3 or 4 on your temperature dial. But the easiest way is to get a thermometer and place it in the middle shelf of your fridge.

Leave the thermometer for about 15 minutes and check the reading. Adjust the fridge higher or lower to get the temperature settings just right. You may have to do this a few times.

Empty versus a full fridge

A fridge will change temperature depending on your food volume and density  A full fridge is a happy fridge, but the rule of thumb is to fill the fridge to the point of still being able to see what’s in there.

If you don’t keep your fridge fully stocked, you can store a few bottles of water (beer also works) in order to keep a balance. You will notice that your fridge will operate cheaper and more efficiently.

This also applies with freezers where the fuller the better. But if you don’t keep a fully stocked freezer either, just remember to use plastic water bottles that are not too full or they may crack with expansion – NEVER USE GLASS.

If you have broken fridge seals or need assistance, why not contact us for support?