通电之前，必须先按照按一下蒸汽阀，确保它是向上的，因为饭盒内的食物加热

Before applying power, you must first press the steam valve in accordance with, make sure it's up, because it will produce steam after heating food in lunch boxes, if you do not open the exhaust cover heating, it will lead to increased vapor pressure inside the boxes, resulting in deformation of the product can not be Normal use

Before powering up, press the steam valve to make sure it is up, because the food in the lunch box will produce steam when heated, if the exhaust cover is not opened to heat, will cause the internal steam pressure inside the lunch box increased, resulting in product deformation can not be used properly

Before power on, press the steam valve once to make sure it is upward, because the food in the lunch box will generate steam after heating. If the exhaust cover is not opened for heating, the steam pressure in the lunch box will increase, resulting in product deformation and abnormal use<br>