A juicer includes a housing being open to top and including an annular first flange on a top and at least one lower juice spout on a peripheral surface, and a support on a bottom; a filtering mechanism in the housing and including longitudinal ridges on an inner surface, screens each disposed between two adjacent ones of the ridges, annular second flanges on an outer surface, a first rim extending downward from the lowest second flange, and at least one port through the first rim; a rotating mechanism in the filtering mechanism and including an annular element on a bottom edge, a helical screw blade on an outer surface, and an electric motor for rotating the screw blade; and a feed chute on the housing and including an annular member on a bottom edge and a second rim extending downward from the annular member.