The first: the oven automatically preheat, there is a separate time display. Simply put, the preset time is the machine began to work to the end of the time (which contains the preheating time), then the natural time setting is 10 + 40, fifty minutes, and then the preheating tone sound, you can put the food into the food, waiting for the food out of the oven.

Second: If you don't mind the hassle, just set a time and temperature (but longer than the oven's preheat time), and when it's done preheating, put the food in and reset the temperature and time. To understand the function of preheating is to give the internal environment of the oven to a suitable temperature of the desired temperature, the temperature to the general NTC probe and mechanical temperature control can detect the temperature, then you set the second time will automatically skip the preheating or preheating time is greatly shortened

The third: Reservation function + baked food. Now in fact, most of the market in the high-end oven (more steam oven) have this function, such as the night before going to bed to make an appointment 7 hours after the automatic work, then get up in the morning there is something to eat, that process actually depends on the use of the manual reservation function, there are many consumers thought that set up, I did not expect to set up just the reservation time, the real work of the time pressure on the setting of the time, or set up the first The working time, and then go to set the appointment, these are not the correct approach.