1, there is a standard line in the pressure cooker. As long as it doesn't exceed that line, there is no problem. If the food is too full, it will block the vent and be prone to danger.
2. At first, use fire. After the steam in the pot is discharged from the exhaust pipe and makes a sound, the fire temperature can be reduced. Never leave it alone after firing before lowering the fire temperature.
3, porridge porridge is easy to overflow, it will block the safety valve and exhaust hole, the air inside can not be discharged, and it is easy to explode.