Make your own naturally fermented sourdough starter from scratch using just flour and water. This starter forms the foundation for delicious homemade sourdough bread and is easy to maintain with regular feedings over 6 days.
Author:Paula
Prep Time:10 minutes
Cook Time:0 minutes
Total Time:6 days 10 minutes
Yield:Approximately 1 cup active sourdough starter
Category:Bread Starter
Method:No-Cook
Cuisine:American
Ingredients
Starter Ingredients
½ cup whole wheat flour or unbleached all-purpose flour
¼–⅓ cup water, ideally at 75°F
Equipment
1 glass jar or bowl (about 32 ounces)
1 paper towel
1 rubber band
Instructions
Start the Starter: In the glass jar, combine ½ cup whole wheat flour with ¼ cup water. If needed, add up to ¼ cup more water to reach a pancake batter consistency. Stir well and let rest for 30 minutes to hydrate the flour.
First Feeding: Stir the mixture thoroughly after resting. Cover the jar with a paper towel secured by a rubber band. Let it sit at room temperature (preferably a warm spot) for 24 hours. After 24 hours, check for bubbles signaling fermentation. If bubbles appear, feed with ½ cup all-purpose flour and ¼-⅓ cup water. If no bubbles, stir and wait another 24 hours.
Second Feeding: Once bubbles are visible, discard half of the starter. Add ½ cup all-purpose flour and ¼-⅓ cup water. Stir thoroughly and let it sit 24 hours at room temperature.
Third Feeding: Repeat discarding half. Feed again with ½ cup all-purpose flour and ¼ cup water. Stir well and let sit for 24 hours.
Additional Feedings: On days 4, 5, and 6, optionally feed the starter twice daily if planning to use it soon. Continue until the starter consistently bubbles and doubles in size within 8 hours of feeding.
Storage: Once matured (usually by day 5 or 6), store the starter in the refrigerator. Feed about once a week to maintain. Before baking, remove it 24 hours ahead to feed and allow it to become active again.
Notes
Use non-chlorinated water, such as filtered or spring water, for best fermentation results.
Temperature affects fermentation speed; a warmer room will speed up starter activity.
Discarding part of the starter at feedings is important to maintain balance and prevent overgrowth.
Consistency should be like thick pancake batter; adjust water accordingly.