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Thursday 25th August 2016
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Why is plastic always wet out of the dishwasher?


When you unload the dishwasher, why are glass things dry, but the plastic things still wet?
Caroline, Bromley


** Definitive **
Name: Joel, Buckingham
Qualification: B at GCSE Physics
Answer: It’s about the conductivity of the materials. It is the evaporation of the water on the item that dries them. Metal and glass gets hot, so they dry. Plastic stays cold, so they stay wet.