Start temperature: press the mode setting key once, at this time set the indicator light, according to the addition or subtraction key set the starting temperature. The most height: press the mode set button second times, at this time the temperature indicator light, according to the addition or subtraction key set the maximum temperature. The most high temperature baking time: according to the mode set button third times, at this time the time indicator light, according to the addition or subtraction key set the most high temperature baking time.