The 16cm Rimmed Bread & Butter Plate has a thick raised rim on the outer edge. This plate is specifically used for individual bread & butter servings, or other preferred accompaniments to a meal. 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.