2. Secondly, press the "Reservation" button on the left. At this time, a small red light will light up on the reservation button, and then the initial number on the display screen will be 2 hours, which means it will take more than 2 hours to make an appointment.

3. Then press the "+"key to adjust the time you need.

4. Finally, press the function key at this time, and little red dot will be transferred to the above function for steaming and stewing. Then press the function key again, and it will jump to the above for stewing soup. At this time, the display screen is the time for making an appointment, and this is the countdown.