Leftover load detection method using a humidity sensor in a laundry appliance

A laundry treatment appliance comprising:

• a cabinet;
• a basket rotatably mounted within the cabinet and defining a chamber configured for receiving a load of clothes;
• a door rotatably mounted to the cabinet for providing selective access to the chamber;
• a sensor positioned within the cabinet, the sensor configured to measure a humidity of air within the cabinet;
• and
• a controller operably coupled to the sensor, the controller being configured to:
• determine that an operating cycle of the laundry treatment appliance has been completed;
• determine that a user has removed the load of clothes from the chamber based on the door being opened at least once and that no other action has been taken within a predetermined time;
• obtain one or more humidity measurements of the chamber using the sensor after determining that the user has removed the load of clothes;
• identify a leftover article remaining in the chamber by comparing the one or more humidity measurements against an ambient humidity measurement and determining that at least one of the one or more humidity measurements is greater than the ambient humidity measurement by a predetermined threshold after a predetermined length of time;
• and
• implement a responsive action in response to identifying the leftover article remaining in the chamber.