La Cornue ranges do not have a self-cleaning feature. La Cornue has made it clear that this feature was considered carefully and that intense heat would diminish the lifetime of the oven. Over time, the self-cleaning feature would cause the seal to break down, resulting in performance issues. To clean stuck-on food in your La Cornue oven: Fill a pan with distilled water, vinegar, and dish soap. Set the pan inside the oven and set it to 107°C Let it steam for approximately 30 minutes to loosen the cooked-on grime. Use a soft cloth to wipe the inside.