Refrigerator walls full of ice: why it happens and how to avoid it
Opening your refrigerator and finding the back wall covered in frost or ice is a fairly common problem. A thin layer of frost may be normal in some refrigerators, but when the ice becomes thick and continues to build up, it’s important to determine the cause.
In most cases, the culprit is excess humidity inside the refrigerator, but the door seal, the temperature setting, or the exhaust system can also contribute to the problem.
Why does ice form?
Every time we open the door, a certain amount of warm, moist air enters the refrigerator. When this moisture comes into contact with very cold surfaces, it can first turn into condensation and then into frost or ice.
The phenomenon may become more evident if the door is opened frequently or remains open for a long time.
1. Check the door seal
One of the first things to check is the rubber seal around the door.
If it’s dirty, warped, worn, or has small cuts, the door may not close properly. This allows outside air to continue to enter, increasing indoor humidity.
Clean it with a soft cloth and warm water and check that it seals well all around. If it’s damaged or no longer seals properly, it may need to be replaced.
2. Do not put hot food in the refrigerator.
Placing a pan or container with very hot food directly in the refrigerator quickly increases the temperature and humidity inside.
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