In a maceration conveyor assembly (10) a juice deflector (50) deflects juice around a return run of a conveyor into a trough (51). Preferably the juice deflector and trough are configured as opposed axially extending V-shaped stainless steel plates. The assembly (10) feeds into a first mill (11) of a milling tandem, and output from the mill (11) is delivered onto another conveyor and carried to the next mill in the tandem. Low pol maceration liquid is returned to the conveyor via return lines to respective distribution weirs (16) and (17). The conveyor assembly (10) includes an inlet end (20) and an outlet end (21) all supported on a supporting framework (22) so that the assembly is inclined from the inlet end (20) to the outlet end (22). An endless plate conveyor (25) comprises interconnected perforated plates (26) adapted to pivot relative to each other in chain like fashion.