It is the "auto key" of seven control about the fire and time at one-touch. * Regulation of temperature is possible to eight steps to 40 ℃ (fermentation) ~ 260 ℃. The time and effort of preheating is not needed, either but even Naka heats firmly for a short time. Moreover, if "handmade punkie" is used, the forming fermentation and the baking raising of bread are easy.