Sourdough: Baking with Wild Yeast
Like Duolingo, but for Sourdough: Baking with Wild Yeast. 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.
A short one: 12 levels across 2 sections, about 24 minutes end to end, roughly 5 days at five minutes a day. It moves through The First Loaf and Mastering the Living Culture. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in Sourdough: Baking with Wild Yeast
- Wild yeast in sourdough takes hours or days to produce gas
- Commercial yeast or baking powder works in minutes to an hour
- Sourdough flavor develops during this extended biological activity
- Flour proteins naturally bond into gluten when left alone with water
- The 'autolyse' process allows the dough to organize itself over several hours
- No-knead recipes trade physical labor for longer waiting periods
- Understanding that sourdough relies on slow fermentation rather than instant chemical leavening
- The role of time in gluten development for no-knead sourdough
- The lid traps moisture evaporating from the dough to create a steamy environment
- Warmth accelerates the activity of the sourdough culture
- Steam keeps the crust soft longer, allowing the bread to expand fully
- Cold temperatures act as a 'brake' on the fermentation process
- The function of a Dutch oven in creating a professional crust
- Baking times in recipes are estimates that must be adjusted based on your home's climate
- Discard is fermented flour and water, not 'dead' or 'bad' batter
- Discard is still a functional ingredient that adds tang and texture
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Sourdough: Baking with Wild Yeast 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.
Here's what playing it feels like
A real question from this course. Take your best guess.
How fast does commercial yeast usually work compared to wild sourdough yeast?
Get it right to open this lesson and 11 more in the app.
Where Sourdough: Baking with Wild Yeast takes you
Stop following rigid recipes and start understanding the living ecosystem of wild yeast to bake crusty, tangy bread at home.
- 1
The First Loaf
- Your First No-Knead Loaf
- 2
Mastering the Living Culture
- Caring for Your Starter
- Reading the Dough
- The Art of the Crust
2 sections · 4 units · 12 levels. Built to play, not to enroll.
You pick the voice
Sourdough: Baking with Wild Yeast 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: Baking with Wild Yeast today.
Download Tomo, search Sourdough: Baking with Wild Yeast, and play your first lesson in under a minute.