A food cooking oven has moisture sensing means as well as temperature sensing to determine the process of the cooking.

摘要

The oven (11) has a circulating fan (22), a heating element (20), temperature sensor (23) and a moisture sensor (30) which in conjunction with a timer (35) and acoustic transmitter (31) and receiver (32) monitors the water vapour content of the oven by the speed of sound at the density of air within.