An apparatus (100; 200; 300; 800; 900) for processing agricultural matter comprising: a first compartment (105; 310; 805; 910), for receiving agricultural matter from an external source; a second compartment (120; 305; 815; 905a, 905b), for processing agricultural matter; a third compartment (875; 965), for receiving processed agricultural matter; a first re-sealable airtight seal (110; 315; 810; 915), disposed between the first compartment (105; 310; 805; 910) and the second compartment (120; 305; 815; 905a, 905b), and a second re-sealable airtight seal (185; 350; 880; 970), disposed between the second compartment (120; 305; 815; 905a, 905b) and the third compartment (875; 965), through which agricultural matter passes; a vacuum source (140; 835), operably connected to the second compartment (120; 305; 815; 905a, 905b), that evacuates air from at least the second compartment (120; 305; 815; 905a, 905b); a gas supply (145; 840), operably connected to at least the second compartment (120; 305; 815; 905a, 905b), that provides gas to the second compartment (120; 305; 815; 905a, 905b); a plasma ionizer (845, 850; 945, 950), operably associated with the second compartment (120; 305; 815; 905a, 905b), that ionizes gas in the second compartment (120; 305; 815; 905a, 905b) into a plasma; an RF generator configured to provide a plasma striking voltage and operating power; an RF matching network, configured to match an impedance of the RF generator; a plasma controller, operably associated with the second compartment (120; 305; 815; 905a, 905b), that controls plasma flow within the second compartment (120; 305; 815; 905a, 905b), and; a first ridged sheet, operably connected to an actuator, that moves agricultural matter within the second compartment (120; 305; 815; 905a, 905b); and a second ridged sheet, operably connected to an actuator, that moves agricultural matter within the second compartment (120; 305; 815; 905a, 905b), wherein the plasma ionizer (845, 850; 945, 950) includes a pair of electrodes (845, 850; 945, 950) on opposite sides of an exterior surface of the second compartment. a first compartment (105; 310; 805; 910), for receiving agricultural matter from an external source; a second compartment (120; 305; 815; 905a, 905b), for processing agricultural matter; a third compartment (875; 965), for receiving processed agricultural matter; a first re-sealable airtight seal (110; 315; 810; 915), disposed between the first compartment (105; 310; 805; 910) and the second compartment (120; 305; 815; 905a, 905b), and a second re-sealable airtight seal (185; 350; 880; 970), disposed between the second compartment (120; 305; 815; 905a, 905b) and the third compartment (875; 965), through which agricultural matter passes; a vacuum source (140; 835), operably connected to the second compartment (120; 305; 815; 905a, 905b), that evacuates air from at least the second compartment (120; 305; 815; 905a, 905b); a gas supply (145; 840), operably connected to at least the second compartment (120; 305; 815; 905a, 905b), that provides gas to the second compartment (120; 305; 815; 905a, 905b); a plasma ionizer (845, 850; 945, 950), operably associated with the second compartment (120; 305; 815; 905a, 905b), that ionizes gas in the second compartment (120; 305; 815; 905a, 905b) into a plasma; an RF generator configured to provide a plasma striking voltage and operating power; an RF matching network, configured to match an impedance of the RF generator; a plasma controller, operably associated with the second compartment (120; 305; 815; 905a, 905b), that controls plasma flow within the second compartment (120; 305; 815; 905a, 905b), and; a first ridged sheet, operably connected to an actuator, that moves agricultural matter within the second compartment (120; 305; 815; 905a, 905b); and a second ridged sheet, operably connected to an actuator, that moves agricultural matter within the second compartment (120; 305; 815; 905a, 905b), wherein the plasma ionizer (845, 850; 945, 950) includes a pair of electrodes (845, 850; 945, 950) on opposite sides of an exterior surface of the second compartment.