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The ingredients for how to make a sourdough starter is in a glass jar.
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How To Rehydrate a Sourdough Starter

If you’ve ever wondered how to bring that packet of dehydrated sourdough starter to life, whether it came from a friend, an online purchase, or your own kitchen, you’re in the right place!
Prep Time5 days
Total Time5 days
Course: Breakfast
Cuisine: American
Servings: 1 Serving
Calories: 182kcal
Author: Lynn Polito

Ingredients

  • 25 grams Dehydrated Sourdough Starter
  • 50 grams Water
  • 50 grams Unbleached All Purpose Flour

Instructions

  • Add 25 grams of the dehydrated sourdough starter in a clean jar or mason jar. Pour 50 grams lukewarm water over the starter. Stir gently until the starter is mostly dissolved. Don’t worry if there are a few small clumps. They will hydrate eventually.
  • Let the mixture sit for about an hour or two. This gives the dehydrated starter time to absorb the water.
  • Stir in 50 grams all-purpose flour to form a thick paste, similar to a thick pancake batter. Cover the jar loosely with a lid or a clean kitchen towel. Let the mixture sit at room temperature for 12–24 hours. If you don’t see bubbles yet, don’t panic! Patience is key!
  • On day 2 or 12-24 hours later, discard half the mixture (or use it in a sourdough discard recipe) and feed it with 50 grams water and 50 grams flour in a new mason jar.
  • Repeat every 12 hours. Once you have a starter that has risen, start using 100 grams of water, 100 grams of starter, and 100 grams of water to get more starter growing.

Notes

  • Once your starter doubles in size within 4–6 hours of feeding, it’s ready to use in your favorite sourdough recipes.
  • Your starter should have the consistency of thick pancake batter. Adjust with a little more flour or water if it is a little too thick.

Nutrition

Calories: 182kcal | Carbohydrates: 38g | Protein: 5g | Fat: 0.5g | Saturated Fat: 0.1g | Polyunsaturated Fat: 0.2g | Monounsaturated Fat: 0.04g | Sodium: 4mg | Potassium: 54mg | Fiber: 1g | Sugar: 0.1g | Vitamin A: 1IU | Calcium: 9mg | Iron: 2mg