4.Alarm mute interface: When you see quite some fermented garbage piled besides the outlet through mobile app, open the back door. There you will see a black round-head wrench at the left lower corner. Turn it backward, then the drum will reverse. Meanwhile the fermented garbage will be discharged from the outlet. The time for discharging could be 2 to 3 minutes or up to the actual data of the screen. After discharging, push the black round-head wrench forward to its place, then the discharging stops.