Abstract: Embodiments of the inventive technology may be described as a plant biomass extraction apparatus for production of liquid extract from plant biomass, using carbon dioxide, including one or more of: carbon dioxide chiller, extraction chamber, extract collection chamber, at least one valve, and fluid conveyance componentry, configured to define a closed loop for passive, pump-free extract production. Certain embodiments may avoid saturation of the extractant, and the resultant compromise of process effectiveness that may be seen in those apparatus relying on mechanical pump(s) for flow and/or may present a tabletop, closed loop liquid carbon dioxide extraction apparatus for the production of an extract from plant biomass or other matrix.

Abstract: Embodiments of the inventive technology may be described as a plant biomass extraction apparatus for production of liquid extract from plant biomass, using carbon dioxide, including one or more of: carbon dioxide chiller, extraction chamber, extract collection chamber, at least one valve, and fluid conveyance componentry, configured to define a closed loop for passive, pump-free extract production. Certain embodiments may avoid saturation of the extractant, and the resultant compromise of process effectiveness that may be seen in those apparatus relying on mechanical pump(s) for flow and/or may present a tabletop, closed loop liquid carbon dioxide extraction apparatus for the production of an extract from plant biomass or other matrix.