Allow the fryer to cool until warm but not hot. Remove any grease remaining from your last use.
Remove the fryer basket and set aside. Fill the fryer basin with club soda and allow it to soak for 10 minutes to loosen the gummed-on grease.
Empty the fryer basin to remove the club soda. Wet a nylon mesh sponge with the club soda. Sprinkle table salt onto the sponge.
Scrub the surface of the fryer basin with the salt to remove the gummed-on grease. Add more salt as needed to loosen and lift the greasy residue.
Fill a dishpan with full-strength white vinegar. Set the fryer basket in the vinegar and allow it to soak for 20 minutes to remove grease.
Clean the inside of the fryer basin while the basket soaks. Moisten a paper towel with the vinegar and wipe out the basin. Dry it with another towel.
Scrub the fryer basket with a scrub brush and the vinegar to remove gummed-on grease residue. Rinse the basket with water. Invert the basket on a towel and allow it to air-dry.