Category: Free Inquiry

This is the category to apply to your Free Inquiry posts.

Making Sourdough Bread

For many of us, bread is a major staple food in our everyday diet. From toast at breakfast, the crust of our pizza, to the rolls we share at dinner time, bread is everywhere and universally loved. This passion spans back thousands of years, starting with flatbreads that were cooked in burning embers, to fluffy hearty breads baked in specialized ovens.

I began my inquiry project with a goal to learn more about the world of bread making. Specifically, the art of sourdough starters. As I began my research, I started to notice the fascinating blend of science, history, and culture wrapped up in something as seemingly simple as flour and water. I began my sourdough starter with my digital food scale, thermometer, rye flour, and all purpose flour. During this initital process, I couldn’t help wondering how, without any technology or knowledge about microbiology, did ancient civilizations figure out the complex process of fermentation?

When making sourdough at home today, you will follow a precise step-by-step process of mixing varying levels of Rye flour, unbleached All-Purpose flour, and water heated to exactly 85°F. Your starter will need to be ‘fed’ at least once every 24 hours, meaning some of your mixture must be removed and new flour and water must be added.

I began my journey of homemade sourdough bread by watching Joshua Weismann’s ‘Ultimate Sourdough Starter Guide‘ on Youtube.

I found Joshua’s video very informative and easy to follow, especially for a beginning bread maker like me! He even includes a detailed downloadable PDF that provides specific instructions for beginning your sourdough starter.

After watching the tutorial video a couple hundred times, I was ready to begin my bread-making journey. Pictured here is my digital food scale, a thermometer, a clean glass jar, unbleached All Purpose flour, dark Rye flour, a spatula, and water. Day 1 of my starter feeding calls for the following:

  • 100 g rye flour
  • 150 g water at 85°F

As recommended by Josh in his video, I record the weight of my empty mason jar. This will be needed for later when I routinely remove mature starter and add fresh ingredients. During my recording and careful weighing of the exact amount of flour, I am thinking about how this can be applied to many different areas of the BC Curriculum across multiple different grade levels. Here are a few curricular connections for mathematics that can be made:

  • Mathematics, grade 3: units of measurement (linear, mass, and capacity)
  • Mathematics, grade 6: Ratios, volume and capacity

For my next blog post, I will focus on the rich history of sourdough bread making. Throughout my free inquiry I also intend to provide weekly updates on my own bread-making journey!

The Science & History of Bread Making

For this semester’s Free Inquiry project, I will be exploring various virtual resources to learn how to make different types of bread. I’ve made some basic breads in past years, but never have made anything that requires more than a few hours of work. For my Free Inquiry Project, I wanted something I could apply to a personal interest of mine as well as being cross-curricular (science, history, and ADST).

Introduction

I chose bread-making for my project because its history and chemical processes have always fascinated me. In the early stages of my research I have come to discover that bread has played a much more important role in human history and civilization than I had initially thought.

The earliest forms of bread date back more than 14,000 years ago in the country of Jordan, where an ancient stone fireplace was discovered with remnants of bread crumbs. During this time period (and dating back over 100,000 years), people would grind cereal grains and mix it with water to form a paste. It is still unclear how exactly this paste was further prepared, but researchers believe that at some point this paste was turned into the world’s first flatbread (Alfaro, 2020).

Ancient Egypt Alive

Between 14,000 and 10,000 years ago, it is believed that the discovery of yeast was discovered accidentally, likely when someone left out the water-flour substance for enough time to let it ferment and form small gas bubbles. Thus, the world’s first sourdough starter was born.

For my project, I plan to research the history, science, and methodology of bread-making to be able to create my own loaves at home, and eventually in the classroom with my future students. Bread-making is great for many different grade levels, and can be applied to multiple subject areas:

  • Science: Bread-making is great for many different grade levels, as it helps show certain chemical processes, such as the role of yeast in fermentation and the production of CO2.
  • Mathematics: Measurement, ratios, fractions, and percentages.
  • History: A food source that has been a staple for thousands of years in many different countries and civilizations.
  • Geography & Social Studies: Explore how regional differences influence types of bread made within certain cultures.

Through my inquiries, I will be able to explore a cross-curricular project suitable for many different grade levels. To stay organized while researching, writing, baking, and reflecting on my project, I will use a Trello board, which is a free online resource (pictured below) to help you organize your daily and weekly tasks.

Sources

Alfaro, D. (2020, March 11). A definitive timeline of bread. The Spruce Eats.

https://www.thespruceeats.com/bread-history-timeline-4783245 

Egyptian Hieroglyphics photo from https://ancientegyptalive.com/2022/06/01/bread-in-ancient-egypt/

Trello Board https://trello.com/b/ybHRqbFx/edci-336-free-inquiry-project