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Sourdough starter in glass jars

Sourdough Starter Recipe

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This traditional sourdough starter recipe requires only flour and water to cultivate wild yeast over 14 days. Follow the simple feeding schedule to create an active starter that will leaven bread for years to come. No commercial yeast needed.

  • Total Time: 14 Days
  • Yield: 1 Cup Active Starter 1x

Ingredients

Units Scale
Day 1:
  • 1 cup + 1 tbsp wheat flour (leveled)
  • 3/4 cup filtered or bottled water
Days 3-4:
  • 4 Tbsp wheat flour
  • 1/3 cup water
Days 6, 8, 10, 12, 14:
  • 4 Tbsp wheat flour
  • 1/3 cup water

Instructions

Day 1:

  1. Mix the starter: Thoroughly mix 1 cup + 1 Tbsp wheat flour with ¾ cup filtered or bottled water in the mason jar until no dry flour remains.
  2. Cover the jar: Cover loosely with lid or cloth to allow airflow.
  3. First ferment: Place in a warm spot (75-80°F, not in direct sunlight) for 24 hours.

Day 2:

  1. Check for activity: Observe the starter for any bubbles or activity.
  2. Stir: Stir the mixture and cover again.
  3. Rest: Leave undisturbed for another 24 hours.

Days 3-4:

  1. Discard starter: Remove and discard ½ cup of starter from the jar.
  2. Feed the starter: Add 4 Tbsp wheat flour and ⅓ cup water to the remaining starter.
  3. Mix and mark: Mix thoroughly until combined. Mark the height with a rubber band to track rising.
  4. Rest and rise: Cover and place in warm spot for 24 hours.

Days 6, 8, 10, 12, 14:

  1. Discard starter: Remove and discard 2 Tbsp of starter before feeding.
  2. Feed the starter: Add 4 Tbsp wheat flour and ⅓ cup water to remaining starter.
  3. Mark and cover: Mix thoroughly until smooth. Mark the height and cover. Place in warm spot.
  4. Monitor activity: Watch for doubling in size within 4-8 hours by day 14.

Testing Readiness:

  1. Check readiness: When starter doubles in size and shows active bubbles, perform float test.
  2. Perform float test: Drop small spoonful of starter into glass of water.
  3. Confirm readiness: If it floats, the starter is ready to use for bread.

Notes

Equipment Needed:

  • 32 oz mason jar (or similar clean glass container)
  • Kitchen scale (recommended for accuracy)
  • Rubber band or tape (for marking height)
  • Spoon or spurtle for stirring

Nutrition

  • Serving Size: 1/4 cup
  • Calories: 120
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