Why do glass and plates dry up in the dishwasher but plastics don’t?

Question

You know how plastic tupperware cups always have drops on them when you take them out of the dishwasher? The plates and glass have long since airdried. What is the properties of plastic that does that?

In: Chemistry

Answer 1

Glass and ceramic have a much higher heat capacity, so they retain more heat when put in the dishwasher. The heat transfers to the water on them which helps it evaporate quickly. Meanwhile the plastic cools quickly and doesn’t heat up the water as much.