Why doesn't it dry?

[Captain Spod]

Tupperware type food containers come up lovely in the dishwasher, but remain the only item still wet after the whole cycle. Glass, china, cutlery all as dry as a bone, but not the plastic. Why is this?

[factor-fiction]

Good question. I've noticed this too. Don't know the answer, sorry.

[ummmm]

I was thinking that this morning when I emptied my dish washer.

[joggerjayne]

Glass, china, cutlery all get hot, and stay warm. The heat of the items themselves causes them to dry.

Plastic does not retain heat. When the cycle finishes, it goes cold, before the water on it has evaporated.

(just a theory)

[Captain Spod]

Brilliant joggerjayne, I think you've got it right. We can all sleep a lot easier now. Thanks.
CS

[joggerjayne]

Crikey ... you mean, I might have got it right?

Yaay !

[redman41]

You should have become a Scientist instead of a Lawyer JJ ! lol

[joggerjayne]

I'm not a lawyer now. Too boring, and not enough money.

As for science ... I have now given away my dishwasher secret for free.

Poop !

[Iggle Piggle]

JJ - being a lawyer not enough money??? what area did you do? I'll avoid it...

[heathfield]

I hope it wasn't ''No win, no fee''?

[Stevesw]

I think also its to do with the surface hardness. Glass and ceramic by its very nature does not scratch easily whereas tupperware (plastic) does. These tiny marks and scratches allow the water to adhere longer and not form droplets as with a harder smoother surface. Imagine looking at both surfaces under a microscope. The tupperware would look like a ploughed field and the glass wouldnt. Think this has more bearing than the drying time :-)