San Francisco's Iconic Sourdough Is Made from 160-Year-Old Yeast

San Francisco's Iconic Sourdough Is Made from 160-Year-Old Yeast

Boudin’s sourdough bread’s unique tangy taste and chewy center has been a hit with San Francisco residents since the bakery first opened in 1849. A big part of brand’s success has been due to its unyielding consistency—a feat only accomplished because the company is still using the same yeast culture that Isidore Boudin collected 160 years ago.

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