To clean your fryer, first unplug it and let it cool down. Then, remove the oil and filter and dispose of them properly. Next, clean the inside of the fryer with warm, soapy water. Be sure to get rid of any grease or food particles that may be stuck to the sides. If the fryer uses a basket, clean it separately by scrubbing off any stuck-on batter or burnt bits. Finally, wipe down the outside of the fryer with a damp cloth. Once you've cleaned the fryer, make sure to dry it completely before adding new oil and frying food.