How to Load a Dishwasher
Insert the plates into the slots in the bottom section of the dishwasher. Face them toward the center and, if they lean at all, lean them inwards and downwards. This is because the tubes, jets and rotating devices spray water outward from the center; down and outward from the top; and, up and outward from the bottom of the dishwasher.
Try to keep all surfaces separated and accessible to the stream of water from the sprayers.
Place the cups, glasses, and bowls at an angle so that they get water from below but don't take up too much room. Stack the bowls neatly on an incline, so that the washing solution can reach inside the bowl and so that they will drain. This also allows you to fill in more space.
Place Tupperware and all other plastic items on the top rack. Because the heating element in most dishwashers is on the bottom, placing plastic items in the bottom rack could cause them to melt or warp.
Place the various pots and pans open-side down in the bottom section of the dishwasher.
Do not crowd or overload the dishwasher.
If necessary, hand wash large items or run the dishwasher a second time.