Improve your cooking & save time cleaning with the B57CR22N1B oven from Neff, complete with 12 heating methods, including Circo Therm which will revolutionise your ways of cooking. Cook fish, cakes & vegetables all at the same time without any flavour transfer with the Circo Therm setting. With multi-level cooking, the powerful fans keep the heat on each individual level. The air is drawn out & forced back in, continuously circulating, which prevents flavours mixing. This achieves the desired temperature faster, saving time & energy. The oven will automatically turn off if it senses it's been left on without interference to give you peace of mind. The time ranges depending on the temperature, for example: under 140degrees C it will turn off after 73 hours, whereas at 251degrees C it will turn off after 2 hours.