Crave the Crust: All About Sourdough

The Basics

In the world of baking, where art and science meet, sourdough bread is highly regarded for its complex flavor profile and unique texture. But what makes this bread so special? Let's take a deep dive into the essential ingredients—flour, water, starter, and salt—that form the foundation of this artisanal product.

Flour:

Flour is the foundation of any good bread, and sourdough bread is no exception. The type of flour used significantly impacts the flavor, texture, and structure of the final loaf. High-quality wheat flour, such as bread flour or whole wheat flour, is often used for sourdough. This flour contains the right amount of gluten, which is essential for dough elasticity and trapping carbon dioxide produced during fermentation.

Water:

Water is the catalyst of the baking process and plays a crucial role in activating the enzymes in flour and kickstarting fermentation. Filtered water is usually preferred for sourdough to remove any unwanted chemicals or chlorine that could inhibit fermentation. The water should also be at the right temperature to promote the growth of wild yeasts and bacteria in the starter.

Starter:

The starter, also known as the sourdough culture, is the heart of sourdough bread. It consists of a mixture of wild yeasts and lactic acid bacteria that naturally occur in the environment. These microorganisms feed on the carbohydrates in flour and produce carbon dioxide gas and acids as byproducts, resulting in the characteristic flavor and texture of sourdough bread. Maintaining a healthy starter requires regular feeding and careful temperature control.

Salt:

Salt is not just a flavor enhancer; it also plays a crucial role in regulating fermentation and strengthening the gluten structure in the dough. It inhibits the activity of enzymes that cause dough degradation and helps retain moisture, keeping the bread fresh for longer. The amount of salt added can vary depending on personal taste preferences, but it is essential for the overall quality of the bread.

This website is designed to help bakers find the perfect balance between flour, water, starter, and salt, enabling them to create a masterpiece of sourdough bread. We offer a wealth of information, recipes, and tips to guide both beginners and experienced bakers through the artisanal process. Discover the art and science of sourdough baking and get inspired to create your own masterpiece!

The baker’s formula

The baker’s formula is an essential concept in the baking world. It is a calculation method that bakers use to determine the ingredient ratios in a recipe, allowing them to produce consistent and precise results.

The Baker’s Formula gives bakers the flexibility to adjust the size of their batches while ensuring that ingredient ratios remain consistent, resulting in a uniform final product. It is a powerful tool for maintaining precision and quality in the bakery.

Important aspects of the baker’s formula:

  • Flour as the Base (100%):
    In the baker’s formula, the amount of flour is always set at 100%. All other ingredients are expressed as a percentage of the flour weight. This makes it easy to scale recipes.
  • For example, if you want to add 2% salt to a recipe and the recipe contains 1000 grams of flour, you would add 20 grams of salt (2% of 1000 grams).
  • Hydration as a Percentage:
    The percentage of water (hydration) is expressed as the ratio of the water weight to the flour weight. For example, if you use 750 grams of water with 1000 grams of flour, the hydration is 75%.
Example

If you have a recipe with 1000 grams of flour, 750 grams of water, 20 grams of salt, and 200 grams of sourdough starter, the baker’s formula would be as follows:

  • Flour: 100%
  • Water: 75%
  • Salt: 2%
  • Sourdough Starter: 20%

Recipe Development:

Professional bakers often use the baker’s formula when developing new recipes. It allows them to quickly and accurately test different variables.

Hydration

Hydration refers to the ratio of water to flour in the dough. The hydration percentage significantly affects the texture, structure, and flavor of the final sourdough bread.

A hydration level between 65% and 85% is often recommended as a starting point. However, this is just a guideline, and you can experiment to find what works best for your specific bread recipe and environmental conditions.

Cheat Sheet
Properties Higher Hydration Lower Hydration
Flavor Stronger sourdough aroma Milder sourdough flavor
Fermentation Speed Faster fermentation Slower fermentation
Proofing Time and Planning Shorter proofing time Longer proofing time
Dough Handling Stickier, harder to handle/td> Firmer, easier to handle dough
The Crust Crispier crust Less crispy crust

Adjustments in the Recipe

When experimenting with hydration, it is important to add extra water or flour as needed to achieve the desired texture.

Keeping notes during the baking process is useful for comparing the results of different hydration levels and finding the perfect balance for your sourdough bread.

Sourdough Starter

The sourdough starter is a mixture of flour and water fermented by wild yeasts and bacteria. These microorganisms drive fermentation and help the bread dough rise. The starter percentage refers to the weight of the starter relative to the total weight of the flour in the recipe.

As a general guideline, you could start with a percentage between 10% and 30% of the total flour weight and adjust based on your experience and preferences.

Cheat Sheet
Properties More Starter Less Starter
Flavor Stronger sourdough aroma Milder sourdough flavor
Fermentation Speed Faster fermentation Slower fermentation
Proofing Time and Planning Shorter proofing time Longer proofing time
Dough Handling Stickier, harder to handle Firmer, easier to handle dough
The Crust Crispier crust Less crispy crust

It is important to note that there are no strict rules for the percentage of sourdough starter, as it depends on personal preference and environmental factors. Experimenting with different percentages can help you determine what works best for your taste and conditions.

Salt

Salt is a crucial ingredient in making sourdough bread, not only for the flavor it adds but also for the important role it plays in the fermentation process.

Salt is a flavor enhancer and contributes to the overall taste of the bread. It gives the bread a balanced, pleasant flavor that enhances the other ingredients.

As a general guideline, an amount between 1.8% and 2.2% of the total flour weight is often recommended. This is a good starting point, but you can adjust the amount of salt based on your personal taste preferences.

Cheat Sheet
Properties More Salt Less Salt
Flavor Overpowering salty taste Possibly bland, underdeveloped taste
Fermentation Speed Slower fermentation process Overactive fermentation
Proofing Time and Planning Slower fermentation, more flexibility Faster fermentation, less flexibility
Dough Handling Dough too firm Weaker dough
The Crust Denser, less crispy crust Crispier crust

It is important to monitor the amount of salt for health reasons. Excessive salt intake can be unhealthy, so it is advisable to aim for a balanced amount.

It is advisable to experiment with the amount of salt and take notes on the results to find the perfect balance for your bread recipe.

Weather Influences

In the world of sourdough bread, every aspect of the baking process is infused with a delicate balance between humans and nature. Besides the essential ingredients – flour, water, starter, and salt – weather influences such as temperature and humidity play a crucial role in making sourdough dough. Let’s take a closer look at how these natural forces impact the craft.

Temperature:

Temperature is one of the most critical factors in making sourdough dough because it affects the speed of fermentation and the activity of wild yeasts and bacteria in the starter. In warmer environments, the dough will rise faster, while in colder conditions, fermentation slows down. This can be a challenge for bakers, as the optimal fermentation temperature is typically around 21-24°C. At higher temperatures, the dough may rise too quickly and develop less flavor, while at lower temperatures, fermentation may be too slow, and the dough might not rise properly.

Cheat Sheet
Properties Low Temperature High Temperature
Flavor Better-developed flavor due to slower fermentation Possibly less pronounced flavor due to faster fermentation
Fermentation Speed Slower fermentation of the dough Faster fermentation of the dough
Proofing Time and Planning Longer proofing times may be required Shorter proofing times may be necessary
Dough Handling Dough may be harder to handle due to reduced yeast activity Dough may rise faster and possibly overproof
The Crust Can result in a thicker, crispier crust due to slower fermentation Can result in a thinner crust due to faster fermentation

To overcome these challenges, bakers use various techniques, such as using a proofing box or adjusting the dough resting times. Some even use methods like autolyse – where flour and water are mixed and left to rest before adding the starter – to enhance dough development, regardless of the surrounding temperature.

Humidity:

Humidity also has a significant impact on sourdough dough, as it affects the evaporation rate of water from the dough. In drier climates, the dough may dry out faster during proofing, resulting in a drier, denser bread. On the other hand, in humid conditions, the dough may retain too much moisture, making it heavy and sticky.

To maintain optimal humidity levels, some bakers use steam ovens or create a humid environment by placing a tray of water in the oven while baking. Others cover the dough with a damp cloth during proofing to prevent drying. With careful attention to these details, bakers can achieve the perfect balance between moisture and dryness, resulting in bread with an ideal texture and crumb.

Cheat Sheet
Properties Low Humidity High Humidity
Flavor Better-developed flavor due to slower fermentation Possibly less pronounced flavor due to faster fermentation
Fermentation Speed Slower fermentation of the dough Faster fermentation of the dough
Proofing Time and Planning Longer proofing times may be required Shorter proofing times may be necessary
Dough Handling Dough may dry out faster and be harder to handle Dough may be stickier and harder to shape
The Crust Can lead to a crispier crust due to faster moisture evaporation Can result in a softer crust due to higher humidity

Making sourdough dough is more than just a science – it is the art of embracing the natural forces around us. By understanding how temperature and humidity affect the fermentation process, bakers can refine their skills and create a sourdough masterpiece that delights both the taste buds and the soul.