Abstract: A door of a washing machine may comprise a main body having an inner section, a side section and an outer section, wherein the side section connects the inner section and the outer section, the side section forms at least sectionally a conical or cylindrical or curved wall, and the main body is preferably transparent for at least visible light. The door may further comprise a connection means for attaching the door to a washing machine, wherein the connection means is arranged at the outer section of the main body, and a locking member for coupling with the washing machine. Furthermore, the side section and/or the outer section comprises at least one fluid channel for guiding pressurized fluid, wherein the fluid channel comprises at least or exactly one input opening and at least or exactly one output opening.