Mastering the Sourdough Micro-World
Like Duolingo, but for Mastering the Sourdough Micro-World. 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.
Free during early access · No credit card · iPhone & Android
Key ideas in Mastering the Sourdough Micro-World
- Warmer temperatures encourage sharp, vinegar-like acid production
- Cooler temperatures favor bacteria that produce a milder taste
- Heat acts as a dial that increases sharp acidity
- Cold environments shift the balance toward mellow flavors
- Bacteria activity changes based on the warmth of the room
- High heat specifically boosts the production of pungent acids
- Stiff starters favor sweeter, milder flavors
- Water helps yeast move and eat faster
- Liquid starters produce more sharp acidity
- Thick starters ferment at a slower, more controlled pace
- The flavor tradeoff between stiff and liquid starters
- The relationship between hydration and fermentation speed
- Liquid starters exhaust their food supply quickly
- The relationship between temperature and specific acid-driven flavors
- Stiff starters stay at their peak for a longer window
- Practical maintenance schedules based on starter thickness
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 Mastering the Sourdough Micro-World 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.
What kind of flavor profile should you expect if you let your starter ferment in a cool basement?
Get it right to open this lesson and 25 more in the app.
Where Mastering the Sourdough Micro-World takes you
Move beyond basic feeding and learn to manipulate your starter's flavor and strength. Discover how temperature, hydration, and flour choice transform your bread from simple to professional.
- 1
Control Your Starter's Personality
- Adjusting Sourness Through Temperature
- The Impact of Stiff vs. Liquid Starters
- Timing the Peak for Maximum Lift
- Using Whole Grains to Boost Activity
- 2
Diagnose and Refine Your Fermentation
- Reading Bubbles and Surface Tension
- Rescuing a Sluggish or Over-Acidic Culture
- The Float Test and Its Limitations
- Managing Your Starter on a Busy Schedule
- Switching Flour Types Without Shocking the Yeast
- Identifying Healthy vs. Harmful Growth
- 3
The Science of the Jar
- How Wild Yeast and Bacteria Compete
- The Role of Enzymes in Dough Strength
- Why Water Quality Matters for Long-Term Health
3 sections · 13 units · 26 levels. Built to play, not to enroll.
You pick the voice
Mastering the Sourdough Micro-World is taught in the 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.
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Start Mastering the Sourdough Micro-World today.
Download Tomo, search Mastering the Sourdough Micro-World, and play your first lesson in under a minute.