Things You Thought Could Go in the Dishwasher But Really Shouldn't
Wooden cutting boards can swell and contract, leaving them teetery and essentially useless on a counter. Most bamboo boards are susceptible, too. (But we found one that uses a heat-resistant adhesive, making it dishwasher-safe: Totally Bamboo GreenLite collection, $11.50 to $40, totallybamboo.com.)
Insulated mugs and containers feature vacuum seals, which can be destroyed if water seeps in.