Abstract: A device for preparing extrudable food products includes a working chamber configured to house ingredients in operation of the device, an extrusion die, a rotation shaft configured to stir the ingredients and extrude the food products through the extrusion die, and a driving system by which the rotation shaft is driven. The driving system is configured to separate the extrusion by at least one time period during which the rotation shaft rotates in a first direction which is opposite to a second direction in which the rotation shaft rotates to extrude the food products. Therefore, build-ups inside the working chamber can be removed by the sticky dough hit and/or lifted by the stirring bars on the rotation shaft when the rotation shaft rotates reversely.

Abstract: A device (1) for preparing extrudable food products, comprising a working chamber (31) capable of housing ingredients in operation of the device (1); an extrusion die (120); a rotation shaft (32) configured for stirring the ingredients and extruding the food products through the extrusion die (120); and a driving system (64) by which the rotation shaft (32) is driven; wherein the driving system (64) is configured to separate the extrusion by at least one time period during which the rotation shaft rotates in a first direction which is opposite to a second direction in which the rotation shaft (32) rotates to extrude the food products. Therefore build-ups inside the working chamber (31) can be possibly removed by the sticky dough hit/lifted by the stirring bars (321) on the rotation shaft (32) when the rotation shaft (32) rotates reversely.