MICROWAVE OVEN

PURPOSE:To improve the sensitivity of a physical state detecting sensor within a food setting part by introducing the exhausted atmosphere from the food setting part into a stirrer setting part through a duct. CONSTITUTION:An exhaust duct 12 of a microwave oven is formed so that the exhausted atmosphere of a food setting part 6 is introduced to a stirrer setting part 7 through an inlet port 14 in the left and rear. According to this constitution, the air capacity supplied to the stirrer setting part 7 through a duct 10 is as small as the total air capacity supplied into a heating chamber 2, but as the atmosphere from the food setting part 6 is also supplied thereto, the stirrer can be sufficiently rotated. The atmosphere from a duct 12 is exhausted outside mainly through an exhaust port 17 and a duct 17 in the rear, and the wind from the duct 10 is exhausted outside from the bottom plate 1a through the exhaust port. The wind having a raised temperature after cooling a magnetron 3 is supplied only to the stirrer setting part 7, so that the detecting ability of a moisture sensor 13 within the food setting part 6 is improved.