No Frost refrigerators do not require defrosting as they prevent ice from forming, while static cooling refrigerators require periodic defrosting to remove ice build-up. If your refrigerator is not No Frost, you must defrost it every 6 months or when the ice accumulation reaches about 1 cm.

These functions allow the refrigerator or freezer to quickly reduce the temperature to preserve the freshness of newly added foods or to quickly cool drinks and foods.