A liquid dispensing system for an appliance may generally comprise a housing comprising a compartment for receiving a cartridge comprising a unit dose, a door slidably connected to the housing movable between an open position, a first actuated position, a second actuated position, and a closed position, a first cutting member connected to the compartment for rupturing a first portion of the cartridge when the door is in the first actuated position, a second cutting member connected to the compartment for rupturing a second portion of the cartridge when the door is in the second actuated position, and a reservoir in fluid communication with the compartment configured to establish a gravity flow from the compartment to the reservoir. Methods of making and using the liquid dispensing system are also described.