Sourdough Bread from Scratch
Master the art of wild yeast. Learn to keep a starter alive and bake your first crusty, tangy loaf using the power of time instead of effort.
Like Duolingo, but for Sourdough Bread from Scratch. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
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 Wild Yeast Partnership and Perfecting the Crust and Crumb. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in Sourdough Bread from Scratch
- Wild yeast and bacteria are naturally present on flour and in the air
- The starter is a living ecosystem, not a chemical leavener like baking powder
- Feeding provides fresh sugars for the yeast to consume
- Removing old starter prevents the jar from overflowing and keeps acidity from becoming too harsh
- Understanding the biological nature of a sourdough starter
- The cycle of maintaining a healthy starter through feeding
- Visible bubbles indicate the yeast is producing gas
- A pleasant fruity or tangy aroma is a sign of healthy fermentation
- A starter should physically rise or expand in its jar after being fed
- Warmth acts as a stimulant for yeast metabolism
- Cold temperatures allow for long-term storage without daily feedings
- Identifying the sensory signs of an active, healthy starter
- Managing starter activity using temperature
- Discard still contains flavor and can be used in recipes that don't require a massive rise
- Using discard in pancakes or crackers reduces food waste
- Purpose and use of sourdough discard
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 Bread 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.
Here's what playing it feels like
A real question from this course. Take your best guess.
Which of these best describes what a sourdough starter actually is?
Get it right to open this lesson and 11 more in the app.
Where Sourdough Bread from Scratch takes you
- 1
The Wild Yeast Partnership
- The Starter: Your Living Pet
- The First No-Knead Loaf
- 2
Perfecting the Crust and Crumb
- Shaping and Surface Tension
- Reading the Fermentation Clock
2 sections · 4 units · 12 levels. Built to play, not to enroll.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
Sourdough Bread from Scratch is taught in the Bestie style: your friend who just gets it. 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.
More Food & Drink on Tomo
Sourdough: Baking with Wild Yeast
Stop following rigid recipes and start understanding the living ecosystem of wild yeast to bake crusty, tangy bread at home.
Everyday Sourdough Baking
Bake crusty, bakery-quality sourdough loaves around your actual work schedule. Master simple starter maintenance, read dough readiness by touch and sight, and harness your home oven for an incredible rise.
Mastering Sourdough at Home
Stop buying expensive loaves and start baking your own tangy, crusty bread. Learn to keep a starter alive and bake your first masterpiece using just flour, water, and salt.
The Mechanics of Sourdough
Bridge the gap between following sourdough recipes and truly controlling your bake. Master dough tension, open crumb architecture, hydration limits, and fermentation chemistry.
Sourdough Bread: Crumb, Crust, and Ferment
Move beyond dense, unpredictable loaves by mastering dough tension, fermentation cues, and heat physics. Learn to diagnose crumb defects, handle high hydration, and steer microbial activity for explosive oven spring.
Bake Your First Sourdough Bread
Stop buying expensive loaves and start baking your own. Learn how to manage a starter, read the dough, and get that perfect crispy crust right in your home oven.
Start Sourdough Bread from Scratch today.
Download Tomo, search Sourdough Bread from Scratch, and play your first lesson in under a minute.