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How to Maintain a Frost Free Fridge and Freezer A frost free fridge and freezer will eliminate the need to manually defrost. This can save you time, effort and electricity when compared to a traditional refrigerator/freezer. If ice crystals are visible on the packaging, frozen food can be damaged. These crystals may cause freezing burns or alter the texture of food. Defrost The process of defrosting the freezer isn't the most exciting or enjoyable however it's an essential part of fridge and freezer