To reduce the discharge amount of steam by suppressing useless heating than necessary for improving energy saving property and to suppress dew condensation and humidification in the surrounding area for preventing a deterioration in the indoor environment.

The rice cooker includes: an outer lid 3 covering the top of a body 1 and including: an inner lid 6 which covers a top opening of an inner pot 2; a pressure regulating valve 8 which maintains a predetermined pressure in the inner pot 2; a steam path 9 which discharges the steam generated in the inner pot 2 to the outside through the pressure regulating valve 8; a steam recovery unit 10 which recovers the steam before it is discharged to the outside from the steam path 9; and a steam temperature sensor 11 which is arranged in the steam path 9 on the side of the pressure regulating valve 8. In this case, after detecting boiling in the inner pot 2 by the steam temperature sensor 11, the pressure in the inner pot 2 is regulated to a predetermined level by the pressure regulating valve 8 and the heating amount of heating means 4 is controlled to such a level that the discharge amount of the steam can be minimized while maintaining the boiling temperature at the predetermined pressure. It is so constructed that the steam generated by maintenance of the boiling temperature is discharged into the outside air through the steam path 9 and through several spaces in the steam recovery unit 10.