The 23cm Rimmed Side Plate has a thick raised rim on the outer edge. It accompanies either sized dinner plates and can either serve starters or side dishes, providing a simple blank canvas for the table. Bone china can be washed in a dishwasher - at a maximum temperature of 140°F. However, we would recommend hand washing any pieces with gold or platinum precious metals. Stubborn stains can be removed by soaking in a mild bleach solution for up to one hour without damaging the china. Scouring pads or abrasive washing agents must not be used. Tableware with a gold or platinum trim must not be used in a microwave.