Cooking appliance, comprising a shaft a cooking chamber, a distribution system for a cleaning liquid for cleaning the cooking chamber, and a circulation system for circulating the cleaning fluid, having a pump, a discharge line and a feed line, the pump being fluidically connected to a discharge of the cooking chamber arranged in a cooking chamber floor of the cooking chamber by means of the discharge line, and being fluidically connected to an inlet opening of the distribution system by means of the supply line, the distribution system comprising a distribution disc having a pintle for torque-transmitting connection to the shaft, and the distribution disc having a base plate arranged on the pintle substantially perpendicularly to a longitudinal axis of the pintle, and at least three, preferably four, vanes arranged symmetrically to one another between the pintle and the base plate, a chamber being formed between directly adjacent vanes, which chamber is delimited by the pintle, the base plate and these two vanes, characterised in that the distribution system comprises a distribution housing and the distribution disc, which is arranged, preferably only partially, in the distribution housing so as to be rotatable relative to the distribution housing, the distribution housing having an inlet opening for supplying the distribution disc with cleaning liquid, and surrounding the distribution disc such that an annular space having a circumferential outlet opening for the cleaning liquid is formed between the distribution housing and the distribution disc, and in that the distribution housing is arranged outside the cooking chamber and the distribution disc, with a side of the distribution disc that faces the distribution housing, enters the distribution housing through an opening in a cooking chamber wall of the cooking chamber, and, with a side of the distribution disc comprising the base plate that faces the cooking chamber, projects into the cooking chamber through the opening. a shaft a cooking chamber, a distribution system for a cleaning liquid for cleaning the cooking chamber, and a circulation system for circulating the cleaning fluid, having a pump, a discharge line and a feed line, the pump being fluidically connected to a discharge of the cooking chamber arranged in a cooking chamber floor of the cooking chamber by means of the discharge line, and being fluidically connected to an inlet opening of the distribution system by means of the supply line, the distribution system comprising a distribution disc having a pintle for torque-transmitting connection to the shaft, and the distribution disc having a base plate arranged on the pintle substantially perpendicularly to a longitudinal axis of the pintle, and at least three, preferably four, vanes arranged symmetrically to one another between the pintle and the base plate, a chamber being formed between directly adjacent vanes, which chamber is delimited by the pintle, the base plate and these two vanes, characterised in that the distribution system comprises a distribution housing and the distribution disc, which is arranged, preferably only partially, in the distribution housing so as to be rotatable relative to the distribution housing, the distribution housing having an inlet opening for supplying the distribution disc with cleaning liquid, and surrounding the distribution disc such that an annular space having a circumferential outlet opening for the cleaning liquid is formed between the distribution housing and the distribution disc, and in that the distribution housing is arranged outside the cooking chamber and the distribution disc, with a side of the distribution disc that faces the distribution housing, enters the distribution housing through an opening in a cooking chamber wall of the cooking chamber, and, with a side of the distribution disc comprising the base plate that faces the cooking chamber, projects into the cooking chamber through the opening.