Abstract: After a preheating operation is performed to raise an inner temperature of a heating chamber to a target preheating temperature (first specified temperature) by a first steam superheater of a steam temperature-raising device, a cooking operation is performed to raise, by the first steam superheater of the temperature-raising device, a temperature of steam obtained by heating of water in a steam generator by heaters 42A, 42B of the steam generator and then supply the steam to the heating chamber. In this process, when inner temperature of the heating chamber detected by an inner temperature sensor 81 during the preheating operation has come to or beyond a steam generation start temperature (second specified temperature) which is lower than a target preheating temperature, a control unit 80 decides that a steam generation start condition has been satisfied, and heats water in the steam generator by the heaters of the steam generator.

Abstract: A steam cooker 1 has: a steam generation heater 52 generating steam; and a steam heating heater 41 heating the steam generated by the steam generation heater 52 to generate overheated steam and heating steam in a heating chamber 20 through circulation, an-article-to-be-heated F being cooked by use of steam fed into the heating chamber 20. The steam cooker 1 has: a first cooking step in which the article-to-be-heated F is cooked with supply of electric power to the steam generation heater 52 being larger than that to the steam heating heater 41; and a second cooking step in which the article-to-be-heated F is cooked with supply of electric power to the steam generation heater 52 being smaller than that to the steam heating heater 41. When the temperature of the article-to-be-heated F exceeds the fat melting temperature zone but is less than or equal to 100° C., the first cooking step is switched to the second cooking step.

Abstract: A steam cooking apparatus having a steam generating device that generates steam to be fed to a heating chamber and a vapor heating heater that heats the steam generated by the steam generating device to provide superheated steam. The steam cooking apparatus includes a first heating mode using the superheated steam obtained from the vapor heating heater and a second heating mode using hot air or radiation heat obtained by using the vapor heating heater without use of the steam generating device so that the second heating mode produces heat without a supply of steam.

Abstract: A steam cooker 1 has: a steam generation heater 52 generating steam; and a steam heating heater 41 heating the steam generated by the steam generation heater 52 to generate overheated steam and heating steam in a heating chamber 20 through circulation, an-article-to-be-heated F being cooked by use of steam fed into the heating chamber 20. The steam cooker 1 has: a first cooking step in which the article-to-be-heated F is cooked with supply of electric power to the steam generation heater 52 being larger than that to the steam heating heater 41; and a second cooking step in which the article-to-be-heated F is cooked with supply of electric power to the steam generation heater 52 being smaller than that to the steam heating heater 41. When the temperature of the article-to-be-heated F exceeds the fat melting temperature zone but is less than or equal to 100° C., the first cooking step is switched to the second cooking step.

Abstract: Midway along an outer circulation passage provided outside a heating chamber, a steam generating device is arranged, and, through the outer circulation passage, steam is fed to the heating chamber. A control device controls a steam generating heater arranged inside the steam generating device and a vapor heating heater provided in a space through which an air stream flowing through the outer circulation passage is returned to the heating chamber, and forms a cooking sequence by using, singly or in combination, a first heating mode that uses superheated steam obtained as a result of the steam being heated with the vapor heating heater and a second heating mode that uses hot air or radiation heat obtained by making the vapor heating heater produce heat without supply of steam.

Abstract: A steam cooking apparatus having a steam generating device that generates steam to be fed to a heating chamber and a vapor heating heater that heats the steam generated by the steam generating device to provide superheated steam. The steam cooking apparatus includes a first heating mode using the superheated steam obtained from the vapor heating heater and a second heating mode using hot air or radiation heat obtained by using the vapor heating heater without use of the steam generating device so that the second heating mode produces heat without a supply of steam.

Abstract: After a preheating operation is performed to raise an inner temperature of a heating chamber to a target preheating temperature (first specified temperature) by a first steam superheater of a steam temperature-raising device, a cooking operation is performed to raise, by the first steam superheater of the temperature-raising device, a temperature of steam obtained by heating of water in a steam generator by heaters 42A, 42B of the steam generator and then supply the steam to the heating chamber. In this process, when inner temperature of the heating chamber detected by an inner temperature sensor 81 during the preheating operation has come to or beyond a steam generation start temperature (second specified temperature) which is lower than a target preheating temperature, a control unit 80 decides that a steam generation start condition has been satisfied, and heats water in the steam generator by the heaters of the steam generator.

Abstract: Midway along an outer circulation passage provided outside a heating chamber, a steam generating device is arranged, and, through the outer circulation passage, steam is fed to the heating chamber. A control device controls a steam generating heater arranged inside the steam generating device and a vapor heating heater provided in a space through which an air stream flowing through the outer circulation passage is returned to the heating chamber, and forms a cooking sequence by using, singly or in combination, a first heating mode that uses superheated steam obtained as a result of the steam being heated with the vapor heating heater and a second heating mode that uses hot air or radiation heat obtained by making the vapor heating heater produce heat without supply of steam.