Abstract: A kitchen device suitable for foaming food materials, comprising a container for reception of food materials to be whipped by a rotary member which is specific in shape and is mounted at the inside bottom of the container, the member being moved about its vertical axis by a driving mechanism provided outside the container. The configuration of the rotary member is substantially a cone containing a side peripheral portion which is concave or inwardly curved in vertical cross-section.

Abstract: A juice extractor comprises a centrifugal separator cylinder (29) rotatably driven by a motor, a cylindrical filter (30) and a lid (61). The cylindrical filter (30) is structured by a spiral body axially expandable and having spiral juice flowing spacings or gaps (69). The cylindrical filter (30) is engaged between a lower surface of the lid (61) and an inner bottom surface of the centrifugal separator cylinder (29) and an outer peripheral surface of the lid (61) is engaged with an inner peripheral surface of the centrifugal separator cylinder (29). As a result, the cylindrical filter (30) is prevented from being axially expanded, and the relative rotation between the cylindrical filter (30) and the centrifugal separator cylinder (29) is prevented. In addition, a juice flowing spacing (58) is formed between the outer peripheral surface of the cylindrical filter (30) and the inner peripheral surface of the centrifugal separator cylinder (29).