Provided is a heating cooking system that can suppress an increase in storage means of a heating cooker, and can store a large amount of data used for maintenance while the heating cooker has a simple configuration. A heating cooking system includes a heating cooker having a container for storing contents, a heating device for heating the container, a first communication unit for communicating with an external device, and a cooker control unit for controlling communication by the first communication unit, And an information terminal device as an external device having a second communication unit that communicates with the heating cooker and a terminal control unit that controls communication by the second communication unit. The heating cooker and the information terminal device are communicatively connected, the cooker control unit transmits device history information indicating an operation history of the heating cooker to the information terminal device via the first communication...

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