Best Recipe for Sourdough Starter (5 Simple Steps from Scratch)

If you have ever tasted a slice of warm, crusty, and tangy sourdough bread, you know how delightful it can be. But did you know that the secret behind this delectable bread lies in its sourdough starter? This article will provide you with the best recipe for sourdough starter, ensuring that you learn how to make sourdough starter from scratch.

how to make sourdough starter from scratch
Homemade Sourdough Starter Recipe

What is Sourdough Starter?

Before we dive into the recipe, it’s essential to understand the science behind sourdough fermentation. Sourdough starter is a natural leavening agent that dates back centuries and is responsible for giving sourdough bread its unique flavor, texture, and rise.

Sourdough starter is a symbiotic culture of yeast and lactic acid bacteria that work together to produce carbon dioxide gas, which makes the bread rise. The key ingredients for a sourdough starter are flour and water, and the balance between these two is crucial for its success. The fermentation process produces lactic acid, giving the bread its characteristic tangy flavor.

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Recipe for sourdough starter

Getting Started: Ingredients and Equipment

Ingredients and Equipment for homemade sourdough starter recipe

To begin your sourdough starter journey, gather the following ingredients and equipment:


  • High-quality organic all-purpose or whole wheat flour
  • Clean, chlorine-free water (preferably filtered or bottled)
  • Love for baking and patience 😉


  • Glass or ceramic container with a loose-fitting lid
  • Non-metallic mixing utensil (wooden or plastic)
  • Rubber band or tape to mark the starter’s growth progress

Day-by-Day Easy Sourdough Starter Recipe

Once you have all the ingredients ready, follow this day-by-day guide below to create your own homemade sourdough starter:

Best Recipe for Sourdough Starter (5 Simple Steps from Scratch)
Flowchart for Easy Sourdough Starter Recipe

Day 1: Initial Starter Mix

The first day is the foundation of your sourdough starter. Follow these steps:

  1. In your glass or ceramic container, combine 100 grams of flour with 100 grams of water. Mix thoroughly until you achieve a smooth consistency.
  2. Loosely cover the container with its lid or a cloth. Avoid using an airtight seal, as wild yeast requires oxygen to thrive.
  3. Store the container at room temperature (around 70°F or 21°C) away from direct sunlight and drafts.

Day 2: First Feeding

Congratulations on completing day one! Now, let’s feed your starter:

  1. You may notice tiny bubbles on the surface, indicating that fermentation has begun. This is a positive sign that wild yeast is colonizing the mixture.
  2. Discard half of the starter (approximately 100 grams) to reduce the volume.
  3. Add 100 grams of fresh flour and 100 grams of water to the remaining starter. Mix well.
  4. Cover loosely and return to the same spot.

Day 3 to 5: Regular Feedings

For the next few days, maintain a consistent feeding schedule:

  1. Your starter should be showing more bubbles and possibly an increase in volume. This indicates that fermentation is becoming active.
  2. Continue the process of discarding half of the starter and feeding it with equal parts of flour and water (100 grams each).
  3. You may notice changes in the aroma, with a mildly sour or tangy smell developing.

Day 6: The Mature Starter

By day six, your sourdough starter should be vigorous and ready to bake with:

  1. The starter should have doubled in volume within 4–6 hours after feeding.
  2. It should have a pleasant and pronounced sour aroma.
  3. The texture should be bubbly and elastic.
Active Sourdough

Congratulations, you’ve successfully created your own sourdough starter!

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Maintaining and Storing Sourdough Starter

Maintaining your sourdough starter is simple. You can keep it at room temperature and feed it regularly to keep it active. Alternatively, you can refrigerate it and feed it once a week. To rejuvenate an inactive starter, take it out of the fridge, feed it for a few days, and it will regain its vitality.

Troubleshooting Your Sourdough Starter

If you encounter any issues with your sourdough starter, here are some common troubleshooting tips:

  1. Slow Fermentation: Ensure your starter is at the right temperature (around 70°F) and use warm water when feeding.
  2. Foul Odor: A strong, unpleasant smell may indicate contamination. Start over with fresh flour and water.
  3. Mold: If mold develops on the surface, discard the starter and sterilize your container before starting again.


Congratulations! You have successfully created a robust and active sourdough starter. With patience and dedication, you can now enjoy endless baking adventures and create delicious artisanal bread right in your kitchen. Remember, a well-maintained sourdough starter becomes better with time, so keep experimenting and perfecting your baking skills.


Q1: What are the two ingredients to a sourdough starter?

A: The two main ingredients for a sourdough starter are flour and water. These two simple components form the foundation of the fermentation process, leading to a vibrant and flavorful starter.

Q2: How do I know when my sourdough starter is ready?

A: You can tell when your sourdough starter is ready by observing several signs:

  1. Bubbling Activity: The starter will show consistent bubbles, indicating fermentation is active.
  2. Rise: It will increase in volume, doubling, or even tripling in size after feeding.
  3. Aroma: A pleasant, slightly tangy smell signifies the starter is mature.
  4. Texture: The starter should have a smooth, creamy consistency.

Q3: What is the best container for a sourdough starter?

A: The best container for a sourdough starter is a clean glass jar with a loose-fitting lid or a cloth cover. Using a glass jar allows you to easily monitor the fermentation process and observe any bubbling activity. The loose-fitting lid or cloth cover allows air circulation while preventing the buildup of pressure, creating an ideal environment for the starter to develop. Avoid using metal or airtight containers, as they can negatively impact the fermentation process.

Q4: How long does it take to make a sourdough starter?

A: The process usually takes around 5 to 7 days, depending on various factors like room temperature and the potency of wild yeast in your environment.

Q5: Can I use whole wheat flour for my starter?

A: Absolutely! Whole wheat flour can add more flavor and nutrients to your starter. Feel free to experiment with different types of flour.

Q6: Can I freeze my sourdough starter for long-term storage?

A: Yes, you can freeze your starter for up to several months. Thaw it in the refrigerator and reactivate it by feeding it regularly.

Q7: My starter smells strange. Is it still safe to use?

A: If your starter smells extremely foul or moldy, it’s best to discard it and start over to avoid any health risks.

Q8: Why is my sourdough bread not rising as expected?

A: Various factors can affect the rise of sourdough bread, including the strength of your starter, the quality of flour, and the fermentation time. Experiment and make adjustments to achieve the desired results.