Two separate cavities let this AEG Series 6000 built-under double oven cook two dishes at once, one in each cavity. SurroundCook fan technology keeps hot air circulating evenly around the enamel interior, so the oven heats up faster and cooking temperatures can drop by up to 20% compared with a standard oven without fan-assisted circulation, though that depends on the dish and how full the shelves are. There is no need to turn trays halfway through cooking. The Isofront double-glazed doors have a heat-reflective coating, and the cooling fan starts automatically to cool the electronics and outer panels.