The catalytic panels are covered with special microporous enamel which absorbs and does away with oil and fat splashes during normal baking over 200°C.
If, after cooking very fatty foods, the panels remain dirty, operate the oven “idling” on max temperature for about 30 minutes. These panels do not require to be cleaned, however it is advised to periodically remove them (at least the side panels) and to wash them with tepid soapy water and then wipe off with a soft cloth.