Made from a 170+ year-old heritage culture, this freeze-dried sourdough starter preserves the deep, tangy character of San Francisco sourdough bread. Crafted with organic flour, mineralized water, and sea salt, our sourdough starter culture is clean, simple, and dependable. Its distinctive flavor comes from wild yeast and Lactobacillus sanfranciscensis, naturally found in our long-established San Francisco sourdough starter culture.

The result is a balanced sourness, a chewy crust, and an open crumb that define true artisan sourdough bread. This freeze dried starter for sourdough bread comes to life quickly. Many bakers begin on Friday and are ready to bake by Monday. Just feed with water and flour to revive.

Its well suited for sourdough pancakes, pizza dough, crackers, and more. Bring depth and consistency to every bake with our organic sourdough starter a reliable choice for naturally leavened breads full of flavor.