There was a discussion once, I think on egullet, where someone who knows a lot more about sourdough than I do said that over time the local wild yeasts, which are better adapted to the local environment, take over the starter from whatever yeast were originally incorporated. So eventually all starters maintained in Chicago will have the same characteristics and will be different from those in San Francisco. I don't know if this is true or not, but I have two starters I purchased from sourdo.com, one French and one Italian, and I am hard pressed to tell the difference in flavor, except the Italian one seems more active.
Last edited by
rickster on April 29th, 2008, 8:49 am, edited 1 time in total.