Abstract: An apparatus for allowing air to circulate around food being heated in a microwave oven serves to expose a substantial surface area of the bottom of the food to the air circulating in the microwave oven under the control of the microwave oven fan. The apparatus has a base (25) which, in use, is normally supported on a rotating turntable of the microwave oven and rotates with the turntable. The apparatus also has a plurality of spaced apart support structures (29) or raised legs which extend upwardly from the base (25) and support the food in spaced relation thereto so that air may circulate in the space between the bottom of the food and the base (25). Slots (28) passing through the base may be present and these will allow air to flow from beneath the base (25) to the space around the support structures (29). Additionally, the apparatus may include air flow directional structures (27) which extend downwardly from the base (25) and can be supported on the turntable.