Hi John,

You're close, however there's no active cooling involved; it's
strictly passive. Here's one explanation I found on the web:

"Unlike other drying systems that use unclean air from the kitchen’s
back wall, Bosch uses the residual heat from the warm water inside its
tub. A sanitizing temperature of 161°F leaves residual heat in the
tub, creating condensation along the cooler wall. The condensation is
then drained so you’ll never have to release steam into the kitchen."

Source:
http://www.greenbuildingsupply.com/u.../?objectID=377

The process works surprisingly well, although the drying cycle does
require between twenty to thirty minutes to do its job and some water
can remain on plastic items. BTW, Miele uses this same technique, as
does Thermador (the latter appears to be a rebranded Bosch, at least
as far as I can tell). All three have stainless steel interiors and
maybe this is necessitated by the high operating temperatures that are
required for this method to work.

Cheers,
Paul

On Sun, 30 Jul 2006 18:31:39 -0400, "John Gilmer"
wrote:

I haven't heard of "condensation drying."

I ASSume it means that "they" somehow cool the tub/shell and the warm dishes
will evaporate the water onto the shell where the moisture will just go into
the "well."

I suppose this scheme could be made to work with a plastic interior but I
haven't seen it featured in anything I ever looked at.