Conveyor dishwasher and method for operating a conveyor dishwasher

A conveyor dishwasher (1) having at least one wash zone (10, 11.1, 11.2, 11.3) and at least one final rinse zone (13.1), and having a conveyor apparatus (2) for conveying washware through the at least one wash zone (10, 11.1, 11.2, 11.3) and the at least one final rinse zone (13.1) is disclosed. In order to reduce the consumption of disinfection chemical and energy, but to nevertheless maintain an optimum final rinse result, the invention makes provision for the final rinse liquid which is sprayed in the final rinse zone (13.1) to have a metered disinfection chemical, and for at least one additional final rinse zone (13.2) which is arranged downstream of the final rinse zone (13.1) to be provided for spraying fresh water without a disinfection chemical onto the washware to be treated. The at least one additional final rinse zone (13.2) has an associated collection device (22.2) for collecting liquid which is sprayed in the additional final rinse zone (13.2). Furthermore, a liquid transfer system is provided, it being possible to supply the liquid which is collected in the collection device (22.2) directly to the wash zone (10, 11.1, 11.2, 11.3) by means of the liquid transfer system.