Things That Shouldn't go into the Dishwasher - part 3

Graters and Sieves
Any kitchen tool with sharp edges should not be placed in the dishwasher. Graters and sieves can nick the plastic coating on the racks and rust will begin to form. 
And if you crowd items with small holes into the dishwasher, it is nearly impossible for the water stream to remove all of the food particles. Again, hand wash for best results.
Comments:  Guilty Again.  Never thought about them nicking my rack.