Fill a container halfway with warm water -- a pan, small bucket or large bowl will do fine. Add two or three drops of liquid dish soap to the water and mix it thoroughly.
Submerge a clean sponge into the soapy water to soak it. Lightly wring the sponge out afterward to remove excess water.
Unplug the freezer or refrigerator.
Open the freezer door. Scrub the door gasket's sealing surface with the soapy sponge, dipping the sponge back into the water as needed.
Dry the gasket immediately after cleaning. Wipe the door seal with a clean cloth until no traces of moisture remain.
Identify which edge of the door attaches to the freezer via hinges. Coat the gasket's sealing surface along this edge with a thin layer of petroleum jelly. Petroleum jelly keeps the seal moist and prevents it from cracking or becoming brittle.
Close the door and plug the refrigerator back in.
Things You Will Need
- Liquid dish soap
- Clean rag
- Petroleum jelly
- Simple cleaning won't always work to restore a door seal. The door seal needs to be completely replaced if the gasket appears dry and brittle, or if you can easily slip a dollar bill out of the seal when you close the freezer door over it.