AdvancedScienceFermentationMicrobiology

Fermentation Science Deep Dive

The science behind sourdough fermentation

4.9(0 students)
Elias Fournier
Taught by Elias Fournier
Last updated April 2026English15 hours total1 lessons6 weeks

What You'll Learn

Understand wild yeast and bacteria microbiology at a cellular level
Read pH and acidity changes throughout fermentation
Control temperature for precise fermentation timing
Diagnose starter problems with scientific methods
Design controlled experiments to improve your baking
Apply enzymatic knowledge to troubleshoot any dough issue

Requirements

  • Completed Sourdough Fundamentals or equivalent experience
  • Basic understanding of baking terminology
  • Digital kitchen scale and thermometer recommended

Who This Course Is For

  • Bakers who want to go beyond recipes and understand the 'why'
  • Home scientists curious about fermentation microbiology
  • Anyone troubleshooting persistent sourdough issues

Free Sample Lesson

Watch before you enroll โ€” no account needed

The Microbiology of Sourdough: Yeast, Bacteria & Their World

Free preview video coming soon โ€” explore the written materials and course outline below.

24:10Coming Soon

The Microbiology of Sourdough: Yeast, Bacteria & Their World

Elias Fournier takes you inside the microbial ecosystem of a sourdough starter โ€” identifying Saccharomyces cerevisiae, Lactobacillus sanfranciscensis, and the competitive dynamics that determine your starter's health and flavor profile.

Free Preview
Core concept explainedReal examples shownQ&A at the end

Course Curriculum

6 modules โ€ข 26 lessons โ€ข 15 hours total

|
Welcome to Fermentation Science
FreeVideo5:45
The Microbiology of Sourdough: Yeast, Bacteria & Their World
FreeVideo24:10
Lab Culturing Techniques at Home
Video18:30
pH & Acidity: Measuring Your Starter's Health
Video16:45
Week 1 Quiz
5 questions

Your Instructor

Elias Fournier

Elias Fournier

Sourdough Instructor

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Student Reviews

4.9
Course Rating
5 stars
78%
4 stars
15%
3 stars
5%
2 stars
1%
1 star
1%
Brian T.
Brian T.VerifiedMarch 2026

I'm a chemistry teacher and this course is legitimately rigorous. Elias Fournier doesn't dumb anything down โ€” she just explains it better than any textbook. My starter has never been more predictable.

Isabel F.
Isabel F.VerifiedFebruary 2026

The pH section changed my baking life. I bought a $15 pH meter and suddenly I could actually SEE what was happening in my starter. No more guessing.

Kenji M.
Kenji M.VerifiedJanuary 2026

Dense with information โ€” in a good way. I had to rewatch several lessons. The case studies in week 6 tie everything together beautifully. Highly recommend for serious bakers.

Course preview
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$129$32360% off
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This course includes:

  • 15 hours on-demand video
  • Downloadable resources & worksheets
  • Access on mobile & desktop
  • Lifetime access
  • Certificate of completion
  • Instructor Q&A support
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Fermentation Science Deep Dive

$129$32360% off

30-day money-back guarantee

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