Naturally Aged Sourdough Starter

Naturally aged sourdough starter is a live culture of wild yeasts and bacteria, typically flour and water, that has been allowed to ferment over time. This process develops a complex flavor and the ability to leaven bread. It is the traditional method for making sourdough bread.

Manufacturers use sourdough starter primarily for its leavening properties, helping bread rise and creating a characteristic airy texture. It also contributes a distinct tangy flavor and chewy texture to baked goods. It is most commonly found in breads and buns.

Sourdough starter is generally recognized as safe (GRAS) by the FDA when used as a food ingredient. The fermentation process can break down some gluten and phytic acid in the flour, potentially making the nutrients more available and the bread easier to digest for some individuals. International bodies like JECFA have evaluated similar fermentation products, but specific evaluations for 'naturally aged sourdough starter' as a distinct ingredient may vary. Evidence on significant health benefits or risks at typical consumption levels is limited.