A refrigerator appliance and extraction is provided herein. The extraction fluid assembly may include a fluid tank, an open container, a filter assembly, a dispenser housing, and a precision doser. The fluid tank may define an extraction chamber to receive a liquid solvent. The open container may be selectively disposed on the fluid tank to hold an additive within the extraction chamber. The filter assembly may be positioned beneath the fluid tank along a vertical direction in fluid communication with the extraction chamber. The dispenser housing may support the filter assembly. The dispenser housing may also define a dispensing chamber positioned beneath the filter assembly in fluid communication therewith. The precision doser may be in fluid communication with the dispensing chamber to direct an extraction fluid therefrom.