How Coffee Gets Its Flavor
Like Duolingo, but for How Coffee Gets Its Flavor. 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 How Coffee Gets Its Flavor
- Boiling water extracts harsh compounds
- Ratio controls concentration
- Letting water sit highlights sweetness
- Flavor quality vs amount of coffee
- Temperature affects extraction speed
- More grounds won't remove bad taste
- Applying water temperature as a tool for flavor balance
- Distinguishing between coffee strength and coffee quality
- Oxygen is the primary enemy of coffee freshness
- Grinding increases the surface area exposed to air, causing flavor to evaporate rapidly
- Whole beans protect their internal oils better than ground coffee
- Coffee contains oils that stick to plastic and metal surfaces
- Leftover coffee oils turn rancid over time when exposed to air
- Rancid oils from yesterday's brew will dissolve into today's fresh coffee
- Understanding the timeline of coffee degradation
- Identifying the impact of dirty equipment on flavor
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 How Coffee Gets Its Flavor 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.
If you want to change how 'thick' or concentrated your coffee feels, which variable should you adjust?
Get it right to open this lesson and 10 more in the app.
Where How Coffee Gets Its Flavor takes you
Stop settling for bitter office sludge. Learn the simple variables that transform your morning cup from a caffeine delivery system into a flavorful ritual.
- 1
The Perfect Pour
- Brewing a Better Cup Today
- Tasting Like a Pro
- 2
Choosing Your Beans
- Navigating the Coffee Aisle
- The Science of Extraction
2 sections · 4 units · 11 levels. Built to play, not to enroll.
You pick the voice
How Coffee Gets Its Flavor is taught in the The Professor style: clear, structured, thorough. 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 How Coffee Gets Its Flavor today.
Download Tomo, search How Coffee Gets Its Flavor, and play your first lesson in under a minute.