• Rustic Roots sourdough starter package with a jar of starter and flour on a white background
  • Person making bread with a package of King Arthur Flour Sourdough Starter on a kitchen counter.
  • Nutrition facts label and package of My Rustic Roots sourdough starter on a blue background
  • Mature Sourdough Starter Culture
  • Sourdough starter package with benefits listed on a blue background
  • Person pouring liquid into a bowl of flour with text about sourdough starter on a blue background
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Mature Sourdough Starter Culture

$9.95
$9.95
Shipping calculated at checkout.

Freeze-Dried • 12g

For bakers ready to dive in, this mature sourdough starter offers a stronger, more active culture from the very beginning. Carefully cultivated with organic, non-GMO wheat flour, organic rye flour, and filtered water, it’s designed to awaken quickly and ferment with vigor once rehydrated.

The addition of rye encourages lively activity, helping the culture come to life faster than many traditional dried starters. With regular feedings, it becomes a living starter you can maintain indefinitely.

Each 12g packet contains enough culture to establish a robust starter that develops quickly and bakes beautifully. Expect flavorful sourdough bread, airy pizza dough, tender pancakes, waffles, and more.

A thoughtful choice for those who want a faster start and a more active, reliable culture from day one.
Rustic Roots sourdough starter package with a jar of starter and flour on a white background
Person making bread with a package of King Arthur Flour Sourdough Starter on a kitchen counter.
Nutrition facts label and package of My Rustic Roots sourdough starter on a blue background
Mature Sourdough Starter Culture
Sourdough starter package with benefits listed on a blue background
Person pouring liquid into a bowl of flour with text about sourdough starter on a blue background
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