Yet another attempt to replicate classic SF SD. Pending bake.
This is a bit of a teaser ... or a heads up.
I got another recipe for San Francisco Sourdough today via a FB forum. This one is 3rd hand from a 30 year baker for Parisian and Boudin bakeries in San Francisco. He is now retired and bakes bread at home. The provided formula is adapted for home baking.
It is attested to be authentic by two other experienced home bakers, so I am optimistic. I have seen photos and videos of the results and they look very much like the breads of yesteryear!
It will be at 2 or 3 days from now before I have results to report. If it works as well as I expect, I will provide both the recipe as given to me and my adaptation.