To maintain a water temperature inside a bread material at a fixed temperature and to provide puffed decent bread in an apparatus for mixing the bread material composed of a powder body such as wheat flour or rice powder, the water and yeast with seasonings and fermenting and baking it.

In the apparatus for successively and automatically executing a mixing process, a fermenting process, and a baking process for the bread material mainly composed of the powder body, the water and the yeast, a water temperature inside the bread material is detected by a water temperature sensor and the respective processes of making the bread are executed when the detected water temperature is the fixed temperature or higher.