Dan leader's San Francisco Sourdough calls for this flour. What is it and where can I get it.  I didn't see it at KA as a search of TFL archives suggested.

Larry

I made Struan for the first time today, and it turned out very good. My wife who does not usually like my bread, loved it. I made one change in the recipe, because I didn't have any wheat bran. It still seemed to be very good without it. Anyone know how this affects the final product? Should I try it again with the bran?