Crafted from a 170+ year-old heritage culture, this freeze-dried sourdough starter captures the rich, tangy essence of San Francisco sourdough bread. Made from organic flour, mineralized water, and sea salt, our sourdough starter culture is pure, clean, and reliable. The signature flavor comes from wild yeast and Lactobacillus sanfranciscensis, naturally present in our time-tested San Francisco sourdough starter culture.

It delivers that perfect sour bite, chewy crust, and airy crumb that makes artisan sourdough bread so irresistible. This freeze dried starter for sourdough bread activates fast. Most bakers start on Friday and bake by Monday. Simply add water and flour to revive.

Its perfect for baking sourdough pancakes, pizza dough, crackers, and more. Make every loaf count with our organic sourdough starter. Your go-to for bold flavor, consistent results, and naturally leavened perfection.