A dishwasher (1), in particular for a coffee shop and/or for a fast-food restaurant, for cleaning washware, in particular and preferably exclusively washware provided by the coffee shop and/or fast-food restaurant, wherein the dishwasher (1) is associated with an input or insertion region (2) adapted in particular as a return device and in particular adapted as a return machine for reusable washware items (100), and a transport device (3) for transporting the washware from the input or insertion region (2) to a treatment region (4) of the dishwasher (1) and from there to an output or removal region (10) of the dishwasher (1), the treatment region (4) of the dishwasher (1) having a washing and rinsing system (5) for washing and rinsing the washware and optionally, a drying system (6) for drying the rinsed washware, the drying system located downstream when viewed in the transport direction of the washware.

A warewash machine includes a sump for collecting hot cleaning water that is recirculated in the chamber during cleaning, a drain path for draining cleaning water from the sump and a fresh water input line including at least a fresh water input that receives fresh water. A waste water heat recovery arrangement includes a plurality of heat exchange compartments arranged in series flow communication and forming part of the drain path. A waste water input is associated with a first of the heat exchange compartments and a waste water output associated with a last of the heat exchange compartments. Waste water at least partially fills each of the heat exchange compartments. At least part of the fresh water input line passes through each of the heat exchange compartments. Heat from waste water is transferred to fresh water in the drain line within each heat exchange compartment.

A conveyor dishwasher (2) includes a final rinse zone (18) and at least one wash zone (12, 14, 16, 18) and also a conveyor apparatus for conveying washware through the treatment zones of the conveyor dishwasher (2), wherein the at least one wash zone (12, 14, 16, 18) has an associated wash tank (32, 34, 36) in which at least a portion of the wash liquid which is sprayed in the at least one wash zone (12, 14, 16, 18) is collected. The conveyor dishwasher (2) also has a wastewater pump (61) for supplying wash liquid, which is produced as wastewater during operation of the conveyor dishwasher (2), to a heat exchanger device (60) in which at least a portion of the thermal energy of the supplied wash liquid is transferred to the final rinse liquid which is to be sprayed in the final rinse zone (18).

A conveyor dishwasher (2) having a final rinse zone (18) and at least one wash zone (12, 14, 16, 18) and also a conveyor apparatus for conveying washware through the treatment zones of the conveyor dishwasher (2), wherein the wash zone (12, 14, 16, 18) has an associated wash tank (32, 34, 36) in which at least a portion of the wash liquid which is sprayed in the at least one wash zone (12, 14, 16, 18) is collected. The conveyor dishwasher (2) includes a wastewater pump (61) for supplying wash liquid, which is produced as wastewater during operation of the conveyor dishwasher (2), as required to a heat exchanger device (60) in which at least a portion of the thermal energy of the supplied wash liquid is transferred to the final rinse liquid which is to be sprayed in the final rinse zone (18).

A warewasher includes a liquid recirculation system for spraying wares with wash liquid from a collecting tank. The warewasher includes a filter arrangement for capturing food debris in a wash spray before the wash spray reaches the wares being cleaned.

A warewasher includes a liquid recirculation system for spraying wares with wash liquid from a collecting tank. The warewasher includes a filter arrangement for capturing food debris in a wash spray before the wash spray reaches the wares being cleaned.

The invention relates to a conveying apparatus (200, 200, 200, 200) for feeding washware (100, 101) to at least one conveyor belt (50, 51, 52) of a commercial conveyor warewasher (1), with a conveying system (201) for conveying the washware (100, 101), in particular for feeding trays or tray-like washware (100), of cutlery and/or of other washware (101). The invention is characterized by an unloading station (202, 202, 202, 202) for automatically unloading the washware (100, 101) from the conveying apparatus (200, 200, 200, 200) transversely to the conveying direction of the conveying system (201), in which the trays (100), with or without cutlery (103) lying on them, can be oriented on edge and parallel to the transport direction of the conveying system (201), so as to be capable of being placed onto a conveyor belt (50) of the conveyor warewasher. The invention relates, furthermore, to a flight-type warewasher (1) and to a combination of this warewasher (1) and of the conveying apparatus (200, 200, 200, 200). The invention relates, moreover, to a method for loading a flight-type warewasher (1), by means of a conveying apparatus (200, 200, 200, 200) and to a preferred use of same for loading a warewasher with trays or tray-like washware (100).

A warewasher includes a scrap reducing arrangement located within a wash zone for capturing scrap debris falling downward toward a tank. The scrap reducing arrangement is configured to automatically deliver captured scrap debris away from the tank when liquid spraying within the wash zone ceases.

A warewasher includes a scrap reducing arrangement located within a wash zone for capturing scrap debris falling downward toward a tank. The scrap reducing arrangement is configured to automatically deliver captured scrap debris away from the tank when liquid spraying within the wash zone ceases.

Experimental color data obtained from a plurality of cleaning process verification coupons is used to determine optimized cleaning process parameters in an automated cleaning machine. Color data may also be obtained from cleaning process verification coupon(s) to verify the efficacy of a real-world cleaning processes in an automated cleaning machine and/or to obtain one or more suggested corrective action(s) in the event the cleaning process yields an unsatisfactory cleaning result. Based on the optimized cleaning process parameters, an automated cleaning machine may automatically adjust one or more cleaning process parameters to correct for non-optimized parameters sensed during execution of a cleaning process to help prevent an unsatisfactory cleaning result.