If you open your freezer compartment to small puddles of water or frozen vegetables that look like a lump rather than a tasty source of vitamins, your freezer might not be working as it should be. It could simply be that someone left the door open for a little too long… we have a simple trick to help you find out!

  1. Put a container with water in your freezer.
  2. Once the water is frozen solid, put a small solid object (e.g. a coin or a small toy) on top of the ice.

If your freezer works perfectly, the object should remain on top of the ice. If the freezer stops running over a longer period of time, suggesting a possible malfunction, the ice will melt. Your object will be enclosed in the ice – or even drop to the bottom of the container.

Coin In Ice

This trick is especially useful if you are gone for a longer period of time. It’s a quite effective way to check whether your frozen items have been defrosted intermittently. This will not only change the taste, but could be a food safety issue. Time to call service if you return to an object covered in ice!

Liebherr refrigerators have acoustic alarms that will sound when the door is left open, after a power cut or when a significant drop in temperature occurs. Check out our full range of freezers and fridge-freezers here!