I want to give an indication of the coating of the plates yet.
The coating is highly vulnerable. Now some say: "Yes, but you know that before!". Right! They know it in advance, but there are as pans also big differences in the quality and in the plates / contact surfaces should be very gentle and proceed straight in the dishwasher (if necessary) make sure that nothing comes to the surfaces.
Perhaps more gently by hand and a soft sponge, rinse with a brush or other objects.