What are some items unsuitable for dishwashing?
Do not wash plastic items, those with wooden, horn, china, or mother-of-pearl handles, poorly glued cutlery, bonded dishes, pewter, cooper, crystal glass, steel subject to rusting, wooden platters, and synthetic fiber items in your dishwasher.
From the official Robinhood Dwg12p6fwh Freestanding Dishwasher manual, page 13
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