Food & DrinkExplain Like I'm 5Beginner
Sourdough from Scratch course icon

Sourdough from Scratch

Like Duolingo, but for Sourdough from Scratch. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

For the part of you with thirty open tabs that never became anything.

101 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Salty Sam
Sourdough from Scratch
with Salty Sam
101
Levels
9
Sections
5
Min/day
What you'll learn

Key ideas in Sourdough from Scratch

  • Sourdough relies on a fermented flour-and-water starter rather than commercial yeast packets
  • Gluten strands align themselves naturally over long periods of hydration
  • Salt is necessary for flavor and controlling the fermentation rate
  • Time allows the enzymes in the flour to break down proteins without manual labor
  • Identify the essential ingredients for a basic sourdough loaf
  • Sugar and oil are common in sandwich bread but unnecessary for traditional sourdough
  • The lid traps moisture escaping from the dough to create a steamy environment
  • Steam keeps the crust soft longer, allowing the bread to expand fully before setting
  • Professional ovens use steam injectors to achieve the same 'oven spring' effect
  • The dough must be pulled upward to create tension without tearing
  • Understand how time replaces physical kneading in no-knead recipes
  • Folding the dough over itself traps air and builds layers of strength
  • The primary goal of the first bake is understanding the fermentation process, not photography
  • Recognize the purpose of using a Dutch oven in home baking
  • Visual flaws like 'ear' shape or perfect browning are advanced skills that don't affect edibility
  • The sequence of the stretch and fold technique
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Sourdough from Scratch the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

The Magic of Flour and Time

What is the special bubbly engine that makes sourdough bread rise without using store-bought yeast packets?

Get it right to open this lesson and 100 more in the app.

Course map

Where Sourdough from Scratch takes you

Master the ancient art of wild yeast baking. From cultivating your first starter to achieving the perfect open crumb and blistered crust, this course covers every technical detail of the sourdough journey.

  1. 1

    Your First Loaf

    • The Beginner's No-Knead Entry
  2. 2

    The Life of the Starter

    • Creating Life from Flour
    • Feeding and Maintenance
    • Reading the Signs of Activity
  3. 3

    From Flour to Dough

    • The Autolyse and Mixing
    • Bulk Fermentation
    • Temperature Control
  4. 4

    Building Shape and Strength

    • Pre-shaping and Tension
    • Final Shaping Techniques
    • The Final Proof
  5. 5

    Mastering the Oven

    • Scoring for Expansion
    • The Magic of Steam
    • Judging Doneness and Cooling
  6. 6

    Flour, Water, and Ratios

    • Flour Types and Impact
    • Hydration Mastery
  7. 7

    The Art of Troubleshooting

    • Diagnosing the Crumb
    • Crust and Surface Issues
  8. 8

    Flavor and Variety

    • Managing Acidity and Tang
    • Incorporating Add-ins
    • Using Sourdough Discard
    • Focaccia and Flatbreads
  9. 9

    The Science of the Crumb

    • The Sourdough Microbiome
    • Gluten and Enzyme Activity
    • The Physics of the Bake

9 sections · 24 units · 101 levels. Built to play, not to enroll.

How it's taught

You pick the voice

This course
Explain Like I'm 5

Sourdough from Scratch is taught in the Explain Like I'm 5 style: no big words. promise.. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.

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Start Sourdough from Scratch today.

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