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Healthy Sourdough Starter Recipe

4.9 from 139 reviews

A sourdough starter is a natural leavening agent made from just flour and water. It captures wild yeast and beneficial bacteria from the environment, creating a bubbly, tangy culture to help bread rise without commercial yeast. This recipe guides you through the simple daily feeding and fermentation process to develop a lively sourdough starter.

Ingredients

Scale

Starter Ingredients

  • 100 grams (3/4 cup) all-purpose flour or whole wheat flour
  • 100 milliliters (3.4 fl oz) lukewarm water

Instructions

  1. Mix the Flour and Water: In a clean jar, combine equal parts flour and lukewarm water by weight (typically 100 grams each). Stir until smooth with no dry flour patches.
  2. Initial Fermentation: Cover loosely with a cloth or lid and leave at room temperature (70-75°F) for 24 hours to allow wild yeast and bacteria to start fermenting.
  3. Daily Feeding: Each day, discard half of the starter mixture and feed it with equal parts fresh flour and water by weight (100 grams each). Mix thoroughly and cover again.
  4. Repeat the Process: Continue daily feedings and keep the starter at a consistent room temperature. Over 5-7 days, you will notice bubbles, a rise in volume, and a pleasant tangy aroma indicating an active starter.
  5. Ready for Baking: When the starter doubles in size within 4-6 hours of feeding and passes the float test (a small amount floats in water), it is ready to use for sourdough bread recipes.

Notes

  • Use non-chlorinated water to avoid inhibiting yeast growth.
  • Maintain a warm, stable environment to encourage fermentation.
  • Whole wheat or rye flour can speed up fermentation compared to all-purpose flour.
  • Discarding some starter before feeding keeps the acidity balanced and prevents overgrowth.
  • If not baking daily, store starter in the refrigerator and feed weekly.

Keywords: sourdough starter, natural leavening, fermentation, homemade yeast, baking, bread starter