Non-frost Refrigerator is a type of refrigerator where you will not see any formation of frost on the surface of the food. The important factor is keeping the food fresh at all times as the food won’t get any freezer burn. Freezer burn is a condition that takes place on foods, especially when the food has been damaged. This happens by dehydration and oxidation as the food was not wrapped securely in an airtight package. Using a non-frost refrigerator you don’t have to worry about freezer burn and also about defrosting the food manually. In Frost Refrigerator you don't have this update feature.