A washer capable of simultaneously washing trays and dishware. The single unit washer has a dual conveyor system. One conveyor transports trays through the washer and another conveyor transports racks containing dishware and drinking vessels. Preferably, the single unit also includes a dryer which efficiently utilizes the same supply of air to dry both the trays and the dishware. The conveyor system is specifically configured to prevent fast racking and to provide ease in loading/unloading.