Abstract: A deodorizer apparatus for an electric grinder type garbage disposal system automatically injects a spray of deodorizer from a conventional spray can into the grinder chamber after the grinder motor is turned off, which is the optimum time for deodorizing. One type of actuator mechanism uses a shaft supported cam to depress the valve on the spray can. The cam is driven against a rest stop by a spring, and the spring is tensioned by a motor device operated in parallel with the grinder motor when the disposer is active. Another actuator mechanism uses a solenoid operated by logic circuits sensing the state of the grinder motor.