Sourdough Breads & Workshops

Sour Flour bakes San Francisco sourdough bread and bagels. Our loaves are made with organic, type 85 flour and we offer free bagels every Monday at our bakery location. We also deliver to your home or business. We strive to nourish our community, teach the art and science of bread baking and empower bakers with knowledge and skill.

Sour Flour workshops teach how to use sourdough starter and bake fresh and delicious bread at home by offering workshops in dough development, bagels, pizza making and sourdough starters. Sign up for our classes and bake better bread.

Sour Flour is now available on, where you can order fresh bread for home delivery or neighborhood pickup.

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