The PreClean function offers you the possibility to soak the inner bowl with hot water to allow easier cleaning. Fill the inner bowl with cold water up to three quarters of its capacity and add some washing-up liquid.
For the HD6103-05-07, Set the temperature control to the PreClean function. The water will be heated to 80 degrees Celsius. When 20- 30 minutes have passed, switch the fryer off, pour the water out of the inner bowl and clean it with hot water and some washing-up liquid.
For the HD6180, press the PreClean button for at least 2 seconds. The water will be heated to 80 degrees Celsius for 30 minutes to soak the inner bowl. When 30 minutes have passed, you will hear an audible signal to indicate that the heating element has been turned off. You can now lift the inner bowl out of the fryer, empty it and clean it with hot water and some washing-up liquid.