Sourdough Bread

Boudin Bakery

San Francisco Sourdough Round

Very Good Medium confidence
Ingredient Integrity 78

Traditional variant clean with four ingredients; organic variant adds wheat gluten and enzymes as negative signals

Processing Level 72

Traditional mother dough fermentation process but fermentation duration undisclosed and organic variant includes gluten and enzymes

Evidence & Transparency 48

San Francisco production and heritage starter documented but missing grain origin, fermentation time, and milling method details

Product Quality 75

1849 heritage starter culture and traditional four-ingredient formula demonstrate authentic sourdough craftsmanship

Ingredients

Organic Wheat FlourWaterSea SaltOrganic Wheat GlutenEnzymes (organic variant); Traditional variant uses flourwatersaltand mother dough starter culture per manufacturer statements

Certifications

USDA Organic (organic variants)Non-GMO Project Verified (organic variants)

Sourcing

Made in San Francisco, California using Boudin Bakery's proprietary mother dough starter culture with heritage dating to 1849. Traditional sourdough process using four simple ingredients. Organic variants use organic wheat flour and organic wheat gluten. Brand emphasizes artisanal heritage and daily fresh baking.

Transparency notes

Strong transparency on heritage and starter culture lineage. Ingredient composition clearly stated for organic variant at Costco. Traditional variant ingredients (flour, water, salt, mother dough) confirmed by manufacturer menu documentation. Multiple SKU formats available with varying package sizes. Certifications explicitly shown for organic variants.

Origin United States (San Francisco, California)
Last verified June 2026