Adjustable Tray-Dishwashers

This indicates if the position of the tray can be adjusted or not. Soiled utensils in the dishwasher are kept in trays. There are usually two trays in a dishwasher: lower and upper. The trays are made of metal and may be galvanised or coated to prevent rusting. Adjustable trays are benificial incase you need to put big utensils.