10 Health Benefits of My 7 Years Old Natural Yeast

Have you ever wondered why some bread just tastes better, feels more satisfying, and leaves you feeling great after eating it? I discovered the secret when my mother-in-law gifted me a jar of her natural yeast starter. This starter, now seven years old, has become a treasured part of my kitchen. Unlike the commercial yeast you might pick up at the store, natural yeast is a living culture, teeming with beneficial microorganisms that can transform your baking. Not only does it create amazing flavors and textures, but it also comes with a host of health benefits that make it a standout choice for anyone looking to improve their diet.

natural yeast in a jar

My Top 10 Natural Yeast Benefits

1. Improved Digestibility

Since I started using natural yeast, I’ve noticed how much easier bread is to digest. Natural yeast breaks down complex carbohydrates and proteins in flour, making them easier to digest. The fermentation process involves enzymes that partially pre-digest the dough, reducing the workload on our digestive system. This can be particularly beneficial for individuals with sensitive stomachs or those who experience bloating and discomfort after consuming bread.

2. Enhanced Nutrient Absorption

One of the most amazing things I’ve learned about using natural yeast is how it enhances the bioavailability of nutrients. Phytic acid, an anti-nutrient found in grains, can inhibit the absorption of essential minerals such as iron, zinc, and calcium. Natural yeast fermentation breaks down phytic acid, thereby increasing the availability of these vital nutrients. This makes sourdough bread a more nutritious option compared to bread made with commercial yeast.

3. Lower Glycemic Index

Bread made with natural yeast has a lower glycemic index (GI) compared to bread made with commercial yeast. This means that sourdough bread causes a slower, more gradual rise in blood sugar levels, which can be beneficial for people managing diabetes or those looking to maintain stable energy levels throughout the day. The lower GI is attributed to the longer fermentation process, which alters the structure of carbohydrates in the dough.

natural yeast bread

4. Rich in Probiotics

Natural yeast fermentation produces beneficial bacteria, or probiotics, which are known to support gut health. These probiotics help maintain a healthy balance of gut flora, aiding in digestion and enhancing the immune system. Regular consumption of sourdough bread can contribute to a healthier gut microbiome, which is linked to numerous health benefits, including improved digestion and better mental health.

natural yeast bread

5. Reduction of Gluten Content

The fermentation process involved in natural yeast baking breaks down gluten, the protein that can cause digestive issues for some people. Although sourdough bread is not gluten-free, the reduced gluten content makes it more tolerable for individuals with gluten sensitivity. This does not apply to those with celiac disease, who should avoid all gluten-containing products.

6. Antioxidant Properties

Sourdough fermentation increases the levels of antioxidants in the dough. Antioxidants help combat oxidative stress in the body, which is linked to chronic diseases such as heart disease, diabetes, and cancer. The natural fermentation process enhances the antioxidant capacity of the bread, making it a healthier option compared to conventional bread.

7. Longer Shelf Life

One of the practical benefits I’ve enjoyed is the longer shelf life of bread made with natural yeast. The acids produced during fermentation act as natural preservatives, inhibiting the growth of mold and bacteria. This means that sourdough bread can stay fresh longer without the need for artificial preservatives, which are often found in commercially produced bread.

8. Better Flavor and Texture

The superior flavor and texture that natural yeast imparts to bread is undeniable. The slow fermentation process allows for the development of complex flavors and a chewy, satisfying texture. This not only makes sourdough bread a delight to eat but also reduces the need for additional sugars and fats that are often added to commercially produced bread to enhance flavor.

9. Supports Sustainable Practices

Using natural yeast aligns with sustainable and eco-friendly baking practices. Sourdough starters can be maintained indefinitely with proper care, reducing the need for single-use commercial yeast packets. Additionally, the longer fermentation process often requires less energy compared to the rapid rise methods used in commercial baking. This contributes to a more sustainable and environmentally friendly approach to baking.

10. Allergen Reduction

Natural yeast fermentation can reduce the presence of common allergens in bread. For example, the process can break down certain proteins that trigger allergic reactions. This makes sourdough bread a potentially safer option for individuals with mild food sensitivities. However, it is important to note that those with severe allergies should consult with a healthcare professional before making any dietary changes.

How to Make Natural Yeast Using Apples

Creating your own natural yeast at home can be a fun and rewarding process. One simple method involves using apples, which are naturally rich in the wild yeasts and bacteria needed for fermentation.

Ingredients and Equipment:

  • 1 organic apple: Preferably unsprayed to avoid pesticides that can inhibit yeast growth.
  • 2 cups of water: Use filtered or non-chlorinated water.
  • 2 cups of flour: Whole wheat or rye flour works best to start the culture.
  • A large glass jar: Ensure it is clean and free of any residues.
  • Cheesecloth: To cover the jar and allow airflow.


  1. Prepare the Apple: Wash the apple thoroughly and cut it into small pieces, including the peel. The peel contains a lot of natural yeast.
  2. Mix Ingredients: In the glass jar, combine the apple pieces with the water and flour. Stir well to ensure everything is evenly mixed.
  3. Ferment: Cover the jar with cheesecloth and secure it with a rubber band. Leave the jar at room temperature, ideally between 70-75°F (21-24°C).
  4. Daily Stirring: Stir the mixture once a day to incorporate air and promote fermentation.
  5. Watch for Bubbles: After about 3-5 days, you should start to see bubbles forming. This is a sign that the yeast is active and the fermentation process is underway.
  6. Remove Apple Pieces: Once the mixture is bubbly and has a pleasant, slightly sour smell, remove the apple pieces. Your natural yeast starter is now ready to use!

How to Maintain Natural Yeast

Maintaining a natural yeast starter is crucial to keeping it healthy and active for future baking. With proper care, a starter can last indefinitely.

Feeding the Starter:

  • Regular Feeding Schedule: Feed your starter equal parts flour and water at least once a week. If you bake frequently, daily feedings may be necessary.
  • Amounts: Typically, you can feed with 1/2 cup flour and 1/2 cup water. Stir until smooth and leave it at room temperature for a few hours before storing it back in the fridge.


  • Refrigeration: Store your starter in the refrigerator when not in use. This slows down its activity and reduces the frequency of feedings.
  • Room Temperature: If you bake daily, you can keep your starter at room temperature and feed it daily.

Reviving a Starter:

  • Neglected Starter: If your starter has been neglected and developed a layer of liquid (hooch) on top, don’t worry. Pour off the hooch, feed the starter, and let it sit at room temperature until it becomes active again.
  • Reactivation: Sometimes a starter may need a few feedings to return to full strength. Discard half of the starter and feed with fresh flour and water, repeating until it bubbles vigorously.


  • Mold: If you see mold, discard the starter and start anew. Mold can be harmful and is a sign that the starter environment was not suitable.
  • Weak Activity: If your starter is not bubbling as expected, try increasing the frequency of feedings and ensure it is kept at an optimal temperature.


Incorporating natural yeast into your baking routine not only enhances the flavor and texture of your bread but also offers a myriad of health benefits. From improved digestibility and nutrient absorption to supporting gut health and offering sustainable baking practices, natural yeast proves to be a superior choice. Embrace the tradition of natural yeast fermentation and enjoy the wholesome, health-boosting benefits it brings to your table.

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