Unplug the crock-pot and wait for it to cool down after cooking and removing the food for eating. Once cool, remove the lid and ceramic insert and place them in the dishwasher or sink full of sudsy water.
Dip a soft cloth into the sudsy water or dampen a soft cloth with water and dish soap. Wring-out the cloth to remove most of the water and wipe down the metal parts of the crock-pot.
Repeat as many times as necessary until the metal comes clean. Wipe the metal dry with a second soft cloth. Replace the ceramic insert and lid after washing and store the crock-pot in a cabinet or on your countertop.