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4 Great Reasons To Bake With Sourdough & Easy Instructions To Get Started

Updated on May 29, 2015

A Brief History Of Sourdough

Sourdough is the oldest form of leavened bread, dating back to the time of ancient civilization. The Bible even cites that the Israelites generally ate sourdough, but when they left Egypt in a hurry, unleavened bread was a must!

"So the people took their dough before it was leavened, having their kneading bowls bound up in their clothes on their shoulders." -- Exodus 12:34

Sourdough remained the only form of leavening until the introduction of brewer's yeast, which occurred sometime in the 15th century. Monasteries provided the crossover of brewer's yeast into the baking process, as the monks were skilled at producing both beer and bread. Rye breads continue to this day to be naturally fermented in the sourdough fashion, thus making sourdough a mainstay in many European cultures.

Sourdough bread became the bread of choice for those seeking their fortune in the California Gold Rush (1848-1858), and again during the Alaskan Gold Rush (1896-1899). When headed to the gold fields, prospectors skipped packing items such as yeast or baking soda, which were costly and hard to find. The most popular sourdough in the United States is San Fransisco sourdough. Boudin Bakery, still in production in San Fransisco today, can trace it's sourdough starter all the way back to the beginning of the Gold Rush.

How Sourdough Works

The air around us is alive!

There are wild yeast spores floating around us at all times. If these yeast spores land on a source that supplies moisture and carbohydrate, the spores will reproduce and create a thriving colony. So, when a mixture of flour and water is left undisturbed for 2-3 days, the wild yeast spores create a unique colony of yeast.

Lactic acid bacteria also exists all around us. This beneficial group of bacteria include, lactobacillus, lactococcus and leuconostoc, bacteria used to produce naturally fermented food products such as yogurt, cheese, and sauerkraut.

When lactic acid bacteria comes into contact with a mixture of flour and water, the bacteria begins a process called heterolactic fermentation. During this biological process, the bacteria converts sugar into lactic acid, ethanol, and carbon dioxide. The lactic acid and ethanol creates a tangy taste in baked goods, while the carbon dioxide creates air bubbles within a sourdough product.

Sourdough is the result of providing a healthy food source, along with a favorable environment, for a naturally occurring symbiotic colony of microorganisms. The yeast and bacteria in sourdough creates enough leavening to cause a loaf of bread to rise, all without the need for commercial yeast.

The acidity of the lactic acid in sourdough is favorable for the wild yeast, but unfavorable for other bacteria and microbes. This means that not only is the wet sourdough sponge resistant to spoilage, but the baked end product also has a longer shelf-life without added preservatives.

The variety and concentration of microbes will determine the taste of the sourdough. The longer sourdough sits and ferments in between uses, the stronger the flavor of the sourdough. Also, the variety and concentration of airborne microbes varies from place to place, and sourdough tastes different from region to region.

The microbes in sourdough endlessly reproduce as long as there is a sufficient source of carbohydrate. So, if the sourdough is regularly fed, a starter can last indefinitely. This is how some sourdough starters have been handed down from generation to generation.

Four Things That Make Sourdough Bread A Healthier Bread

All those microorganisms that live in sourdough not only make tasty baked goods, they work at a chemical level to change the nature of the dough. After the yeast and bacteria have had a go at the carbohydrates in the flour, the resulting sourdough is higher in nutrition and more easily digested.

Here are the top four reasons to make sourdough your dough of choice.

1. Lactic Acid Bacteria - The Good Guys

As stated above, lactic acid bacteria is necessary for the fermentation process to improve both the flavor and texture of baked goods. However, lactic acid bacteria also directly improves the health of those that ingest the bacteria.

The human gut has it's own colony of microorganisms. Eating foods that have beneficial bacteria, sometimes called probiotics, helps maintain a healthy gut, which means better digestion, leading to improved overall health.

Some of the probiotics survive the initial baking process, making sourdough baked goods a natural source of healthy bacteria for the gut. However, toasting, reheating, or baking thin crisp products, such as pizza dough or crackers, will kill all of the beneficial microorganisms.

So the next time you want to make a sandwich or break a loaf of bread with your pasta, choose a sourdough bread to treat your gut to a healthy treat.

What Is Gluten?

2. Reduce Gluten - The Breakdown

Gluten is a combination of two proteins naturally found in wheat, rye, barley, and triticale. This magic protein combo is what makes dough sticky and elastic, and determines the texture of baked bread. Although gluten is found naturally in cereal grains, some bakers add additional gluten to improve a baked good's texture.

Most people can tolerate gluten, but there are those who have an intolerance for gluten. This autoimmune condition is called celiac disease. Approximately 1 in 133 people in the United States have an intolerance of gluten. Other's suffer from non-celiac gluten sensitivity causing discomfort sufficient to merit the removal of gluten from the diet.

The growing awareness of celiac disease and non-celiac gluten sensitivity has resulted in many products offering gluten free alternatives to traditional cereal grain products.

However, due to the fermentation process of sourdough, gluten contained in the dough's flour is broken down. Depending on the fermentation time, sourdough baked goods have a greatly reduced amount of gluten, and sometimes are even completely gluten free. To ensure optimum time for gluten to break down, choose a sourdough bread recipe that uses no additional commercial yeast and allow the bread to rise 8-10 hours. Preparing sourdough in the evening and allowing it to rise overnight, means a warm crusty loaf in the morning.

The ability of the sourdough process to break down gluten is so efficient, a study conducted in 2010 found that celiac patients could consume properly fermented wheat flour products without ill effects. People suffering from non-celiac gluten sensitivity have also reported an ability to enjoy sourdough baked goods without any negative side effects.

The ancient sourdough method of baking bread is a great way to economically reduce gluten in your family's diet without the need to buy special products.

Understanding The Glycemic Index Of Foods

3. Lower Glycemic Response - A Steadier Burn

The sugar content of sourdough is lower. Why? Well, that lactic acid bacteria responsible for the sourdough's fermentation consumes carbohydrate in the flour, thus lowering the overall sugar content of the dough. Because of this, sourdough baked goods promote a more favorable glycemic response.

It is not just diabetics, or hypoglycemics that benefit from improved glycemic response. A perfectly healthy individual benefits from a lower spike in blood sugar as well. When we eat foods that have a less significant spike glucose in the blood, our hunger is satiated longer, our energy lasts longer, and we avoid the exhausting glucose crash that can occur after consuming high sugar foods.

The glycemic index is useful to determine which foods have a favorable glycemic response and which foods don't. To develop the index, blood glucose levels were tested after the introduction of pure glucose. The blood response to pure glucose was then assigned the value of 100. The blood glucose response to other foods was then tested and compared to the pure glucose response. Each food was then given a value to reflect that comparison. A glycemic index of 55 or higher is considered a higher glycemic response, while 54 and lower is considered a low glycemic response. The higher the number, the greater the glucose response spike.

Sourdough bread is not a low glucose food, however, depending on the fermentation time, sourdough bread can be quite low in sugar, with a favorable glycemic index number. For instance, regular wheat white bread has a glycemic index of 71 and pumpernickel bread, a fermented rye bread, has a glycemic index of 56. Again, the longer the bread dough is fermented before baking, the lower the glucose response.

Source

4. More Easily Digested

Cereal grains contain phytic acid, which inhibits the absorption of nutrition naturally found in the grain. Phytic acid molecules bind with minerals such as calcium, magnesium, iron and zinc, making them unavailable for absorption during digestion.

The wild yeast present in sourdough, predigests the phytic acid found in the flour. This allows the bread to more easily digested and improves the nutrient bioavailability of the naturally present minerals.

Creating Your Own Sourdough Starter

Some people make a sourdough starter, called a sponge, 2-3 days before each time they wish to bake. However, the best tasting sourdough products are made from continuous sourdough. By regularly using and feeding the sourdough, the original starter will be viable and ready to use indefinitely. Simply keep your sourdough in a glass container at room temperature in a place that it won't be disturbed. Add equal parts tepid water and flour to feed your starter at least once a week.

Sourdough Starter

  • 2 cups flour, organic whole wheat or organic unbleached
  • 2 cups water
  • 2 tablespoons sugar, organic raw
  1. Start with a glass mixing bowl.
  2. Mix together all the ingredients.
  3. Cover the mixing bowl loosely with plastic wrap, careful to not seal around the edge of the bowl.
  4. Set the mixing bowl in a warm place in the kitchen where the dough will be undisturbed.
  5. Allow the bowl to sit for 2-3 days.
  6. Stir in the liquid that forms at the top and reincorporate it back into the dough.
  7. Remove 1-2 cups of the sourdough and place in a clean glass jar or small glass bowl. Cover loosely with plastic wrap and store for future use.
  8. Use the remaining 2-3 cups of sourdough sponge for your first sourdough recipe.
5 stars from 3 ratings of Sourdough Starter

Using And Storing Your Sourdough

To use a continuous starter, expand the sourdough the night before baking by adding equal parts water and flour to equate the amount of sponge, or sourdough mix, your recipe calls for. Loosely cover your sourdough with plastic wrap and place in a warm spot overnight. Be sure to remove and reserve your original starter amount, a minimum of one cup, before you begin your recipe.

Always be sure to keep the sourdough loosely covered with plastic wrap, never create an airtight seal. The dough needs exposure to air and the carbon dioxide released by the bacteria needs to escape the dough.

As stated above, the sourdough may be kept loosely covered on the kitchen countertop for frequent use.

However, if the sourdough is not going to be used often, it may be stored loosely covered in the refrigerator. The cooler temperature will slow the bioactivity of the microorganisms, thus extending the time period between feedings to every 2-3 weeks.

Do not forget that the sourdough is a living thing. The colony of yeast and bacteria needs a sufficient supply of carbohydrate and moisture to remain healthy. Every time you expand the sourdough for baking, the supply of carbohydrate is refreshed. If you are not baking weekly, be sure to feed a sourdough kept at room temperature at least once a week by adding equal parts water and flour. Feed a starter kept in the refrigerator at least every 2-3 weeks.

A healthy batch of sourdough means a batch of healthy baked goods!

Some Sourdough Recipes To Whet Your Appetite

The following recipes are a great way to start using your new sourdough starter. Just click on the desired link and start baking!




















Join the sourdough discussion...

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    • Cyndi Gibson profile image
      Author

      Cyndi Gibson 3 years ago from Atlanta, GA

      DebMartin - You are more than welcome! =)

    • profile image

      DebMartin 3 years ago

      LOVE I'm on it! Thanks.

    • Cyndi Gibson profile image
      Author

      Cyndi Gibson 3 years ago from Atlanta, GA

      I know that sourdough can be finicky at times. More than once, I've been disappointed by the appearance of my bread. But I can honestly say that even the funniest looking loaf still tasted great and disappeared in no time!

      May your bread rise and your crust be crisp. Happy baking!

    • joyceho profile image

      joyceho 3 years ago from Toronto, Ontario, Canada

      Warm sourdough bread with whipped butter is one of my favorites. Thank of the instructions on how to make and maintain sourdough starter.

    • rls8994 profile image

      rls8994 3 years ago from Mississippi

      I love sourdough bread. I have never tried to make it myself but my Mother has and it was great. After reading this, I may have to give it a try. Great article! :)

    • FatBoyThin profile image

      Colin Garrow 3 years ago from Kinneff, Scotland

      I've been using my own sourdough for several months now and it works pretty well. However, I'm a bit impatient so I don't leave it overnight to get a better rise (maybe I'll give it go this week, just to see how much difference it makes). Love all the background info in your Hub - very informative. Voted up.

    • RTalloni profile image

      RTalloni 3 years ago from the short journey

      Thanks much for this thorough look at sourdough starter and bread. I've been wanting to look up the info and move towards making it. Am looking forward to doing it now that I have your post.

    • Akriti Mattu profile image

      Akriti Mattu 3 years ago from Shimla, India

      Wow feels so yummy. Gotta try it now.

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