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What temperature should my fridge freezer be?

Find out the perfect temperature for your fridge and freezer with this quick and helpful guide

Your fridge freezer’s main job is to keep all your tasty groceries fresh for longer. Working around the clock, it keeps the appliance at the optimum temperature to create the ideal environment for food of all types. Because it’s such a workhorse, you’ll rarely have to lift a finger, but it’s still good to have an idea of the necessary temperatures just in case you need them.

What you'll need

Even though most fridge freezers have their own thermostat, it’s a good idea to have your own thermometer to hand too. If you think there’s something wrong with your fridge or freezer, there are some really nifty ways you can get accurate temperature readings. More on that a little bit further down the page.

The ideal temperatures

  • Fridge – to keep food fresh for longer and to lock those wonderful nutrients in, your fridge should be kept between 3°c and 5°c.
  • Freezer – the optimal temperature of your freezer is around -18°c. This safely stores your food and will keep pesky bacteria away.

Handy tips

There’s a couple of useful ways you can accurately measure the internal temperature of your fridge and freezer:

  • Fridge – place a glass of water in the fridge and stick a thermometer in the water. Leave it overnight or for a period when you know it’s not going to be used (as long as it’s at least 8 hours). Check the temperature when you first open the door and you’ve got your accurate reading.
  • Freezer – put the thermometer between two frozen bags of vegetables or something similar. Again, check after around 8 hours of the door being closed.

If for whatever reason you need to adjust the thermostat, please be aware that it can take around 24 hours for the temperature to change.