Why do plastic cups coming out of the dishwasher usually have water left on them but the glass cups are dry?

Question

Why do plastic cups coming out of the dishwasher usually have water left on them but the glass cups are dry?

In: Chemistry

Answer 1

Glass is denser than plastic, so it retains heat for longer. Glass also transfers heat more effectively than plastic, so even if both reach the same temperature during the wash cycle, when it ends, the glass will more effectively move heat to its surface than the plastic will.