as well as possibly damaging your new dinner plates. the best idea is to heat them in the oven, especially if you already are using it to cook with. is it safe to put my dish plates in the dishwasher? this is really the same answer because that for the micro wave. you need to look on the prize plates themselves for a marking which says 'dishwasher safe' or 'dishwasher-friendly'. if there is not any marking you should also check on the the dinner plates arrived. if you still see nothing at all then it would be safest never to use the dishwasher for your unique plates. is it damaging 