https://squareblogs.net/canvas....timer7/10-unexpected
Why an Anti Frost Fridge Freezer Doesn't Require Defrosting A freezer that is frost-free does not require defrosting regularly, unlike a fridge that is defrosted either manually or automatically. This is because a cooling system circulates air that is dry and not moist, which could cause ice crystals to form. However, you still need to regularly clean your freezer to ensure it is operating as efficiently as it can. Keep Food Fresh In a traditional freezer, warm air is able to enter the appliance once