Abstract: The hob (1) comprises a support plate (2) which has a treatment area (3) and the cooking vessel (50) has rotary blades (53) connected to an upper magnetic coupling member (54). Below the plate (2) of the hob (1) there is a lower magnetic coupling member (4) rotatably driven by an actuator (6) to magnetically transmit torque to the upper magnetic coupling member (54) of the vessel (50). The hob (1) includes a lower magnetic element (8) below the plate (2) and the vessel has an upper magnetic element (58), which are at the same predetermined distance from the rotating shafts (E1, E2) of the respective magnetic coupling members. When the vessel (50) is in a predetermined angular position, the magnetic attraction between the lower and upper magnetic elements (8, 58) applies opposition to the rotation of the vessel (50).

Abstract: The cooking hob (1) comprises a continuous glass or glass ceramic support plate (2) which has a treatment area (4) capable of supporting a cooking vessel (50) provided with rotary blades (53) connected to an upper magnetic coupling member (54). A drive motor (6) operatively connected for rotating a lower magnetic coupling member (5) located below the treatment area (4) is arranged below said support plate (2). The cooking hob (1) and the cooking vessel (50) comprise respective components of detection means for detecting an angular position change of the cooking vessel (50) in relation to the treatment area (4) and control means (30) configured for modifying or stopping the operation of the drive motor (6) when said angular position change is detected.