- 1). Cut power to the walk-in freezer and allow it to come to ambient temperature.
- 2). Put on work gloves to protect your hands from frostbite and freeze burns, and wrap a chunk of dry ice in a soft cloth.
- 3). Place the wrapped dry ice block over the dent. If possible, work a corner of the ice block into the dent itself. Slowly work the dry ice in circles over the dent, allowing the metal to frost up on and around the dent. Put only very gentle pressure on the ice block, but do not press down hard.
- 4). Move the ice in a circular motion over and around the dent until the dent pops out and straightens. This can take up to 20 minutes.
- 5). Allow the metal to return to room temperature on its own. Repeat the entire procedure if necessary to remove as much of the dent as possible. Some evidence of the dent may remain, even after repeated dry-ice applications.