HotSmart plates are the best way to keep food hot at the table. I will not describe them again; look at the specifications (Specifications for a ceramic plate? You bet). They really stay hot for half hour and you can really handle them by the rim which does not get hot, I give you my word of honor. Do people believe in that anymore? (HotSmart plates need only one minute pre-heating in a full size microwave oven).
Please see the specs, this is really a breakthrough. We need to re-train ourselves to eat slowly.