If there was any item with a lower shelf life than a serving dish, it would be any of the glasses used daily. On the average dining shift, if any survived long enough to get to the autoclave for cleaning, the rough treatment might claim a few more. One way to prevent this is to use the Carlisle 30 Compartment OptiClean™ NeWave™ Glass Rack with Extender (RW30-114). Without the top extender, an entire tray of water glasses can be safely processed within the RW30-114 high impact plastic rack. Add on the extender, and you can include an assortment of both water glasses and tumblers to the safety of the Carlisle - RW30-114 - 30 Compartment OptiClean™ NeWave™ Glass Rack with Extender.