Matt Fitz wrote:
[..]
The bread turned out better than I expected. Sour and chewy, the way I
like it. Here's a photo (sorry for the quality - I used my cell
phone):
http://www.flickr.com/photos/mattandvicki/2356840502/

Crust looks pale - if it's not the camera, would indicate
over-fermenting: no more sugar left for browning.
Sour taste could also be an indication.

What is in potato water? Starches and sugars - and in flour? Not sure
if the critters care at all where it's coming from.

Sam