Catalytic Cleaning. A spotless oven without effort The Catalytic Cleaning feature prevents dirt and grease from building up in the oven. This self-cleaning technology automatically activates when the temperature reaches 250°C and removes cooking residue. No scrubbing needed. Expect spotless with a self-cleaning oven The Catalytic Cleaning feature prevents dirt and grease from building up in the oven. This self-cleaning technology automatically activates when the temperature reaches 250C and removes cooking residue. No scrubbing, just a spotless oven.