Food waste disposer

A food waste disposer comprising:

• a housing;
• a grinding case positioned inside the housing to dispose of food waste, the grinding case including a discharge hole formed on a bottom surface;
• a valve assembly mounted to a lower portion of the grinding case and including a valve member configured to open or close the discharge hole;
• and
• a driving device positioned on one side of the valve assembly to operate the valve assembly,
• wherein the driving device includes:
• a driving motor configured to generate power;
• a power transmission member connected to the driving motor and configured to move in a first direction and a second direction opposite to the first direction;
• a holding member configured to rotate based on movement of the power transmission member, and connected to the valve member to guide an open or closed state of the valve member;
• and
• a sensor in contact with the power transmission member;
• and
• a controller configured to, in response to a signal being applied to the sensor as the power transmission member is moved in the first direction and in contact with the sensor, control the driving motor for a first period of time to allow the power transmission member to be further moved in the first direction.