Unplug the appliance cord from the electrical outlet. This safety precaution should be followed when any work is being done on an electrical appliance.
Lay a plastic drop cloth under the cord to protect the surface of the floor or table from the cleaning.
Spray the appliance cord liberally with a degreaser and let it soak the surface of the cord for 20 minutes.
Wipe the cord with a shop rag and remove the degreaser along with the dirt and debris. Reapply the degreaser and wipe the cord again if the dirt and grease are stubborn and are not removed with the first application.