Where does the food on plates in dishwashers go? There's a drain in the back of the appliance, which is used for both food and water. When was the last time you actually checked that drain? If you've never seen it, or you didn't even know it exists, take a moment and really look inside your dishwasher. While the drain is a fairly substantial size, buildup of bits of food can clog it up. Pieces of leftovers may be running loose in your dishwasher, getting stuck on plates, cups or anything you're trying to wash.
By simply inspecting the lower back portion of your dishwasher, you can save time, energy and unsightly food stains from your kitchenware!