Extruder for Feed- and Foodstuffs

Extruder for making meat analogue products, where the extruder comprises a product inlet and a product outlet, and a longitudinal barrel comprising an inner surface and an outer surface, and where the extruder further comprises heating means for heating at least a part of said inner surface, where said barrel interconnects with said product inlet and outlet and defines an interior space, where the extruder further comprises a rotor arranged coaxially inside the interior space of said barrel, where said rotor has a first end and a second end, a length, a radial thickness and an outer surface and an inner surface, where said rotor further comprises drive means for rotating said rotor in relation to the barrel wherein said extruder further comprises a coaxial centre core, having a cylindrical cross section, and extending at least partly in the longitudinal direction of the barrel, where the centre core comprises an outer surface, where said rotor is arranged rotatably in relation to the inner surface of the barrel and in relation to the outer surface of the centre core, where the rotor comprises drive means for direct or indirect transfer of a rotational torque at both ends of said rotor.