Shameless Plug

Toast

Those of you who are having trouble with sourdough starters, etc. might have an easier time of it with this. It requires no starter and in my judgement captures 99.9% of the flavor of old-school SFSD.

http://www.thefreshloaf.com/node/49375/san-franciscostyle-sour-bread

Yes, you will add lactic and acetic acids extrinsically, but those acids will be present in a live sourdough culture anyway, whether as the byproduct of microbial activity or whether added by the baker.

If you've never had old-school SFSD before and have followed discussions of the old-school gold-rush bakeries such as Larraburu, Parisian, Colombo, Toscana and Pisano, and want to find out what all the fuss is about without turning your kitchen into a microbiology lab, here is an expedient and certainly more foolproof way to do it.

In addition, here is a link to my sourdough blog. Particularly interesting is Rita Robison's glimpse inside the Toscana bakery, formerly located in Oakland.

http://www.chrisnology.info/sourdough/sourdough_index.htm

Chris, I am waiting for the Lactic acid you recommended. I am going to give this a try. The first bake will be exactly as you’ve instructed. I want to give this a serious try. QUESTION - in reading the Amazon reviews I noticed that a number of people said that the flavor resembled a lemon/lime flavor. To me that sounds more like an acetic than lactic flavor. How would you describe the flavor?

What do you think about a future bake using your instructions except, instead of commerial yeast using SD Levain and adjusting the fermentation times. Have you tried this?

I appreciate your help.

Danny

I haven't tasted the lactic acid itself but I do know that if you use too much of it the bread will take on a peculiar flavor. That's why it's important to measure as precisely as possible.

Does your digital scale resolve to the 1/10 of a gram or some other?

I suppose you could try adding a tiny amount of lactic acid to a sourdough culture to try to boost the sourness, but I would caution against the bread tasting peculiar.

Thanks for posting that SFSD patent application.  It makes for fascinating reading.

Note to anyone interested (David S?):  They salted their (patentably novel?) liquid levain.

And other interesting nuggets.  Some serious microbiology going on there.

Tom

...try this recipe eventually, once I source some lactic acid powder and instant yeast.

Website is very helpful, nice information you've got linked there.