The Mechanics of Coffee Flavor
Move beyond basic brewing by mastering extraction dynamics, water chemistry, and sensory evaluation. Discover how harvest processing, roast profiles, and bean physics shape every cup.
Like Duolingo, but for The Mechanics of Coffee Flavor. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
24 levels across 4 sections, about 48 minutes end to end, roughly 10 days at five minutes a day. It moves through Mastering the Extraction, Tasting with Precision, Decoding the Bean, and Roast Chemistry and Freshness. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android
Key ideas in The Mechanics of Coffee Flavor
- Bright organic acids dissolve rapidly in early extraction
- Sugars and sweet aromatic compounds dissolve mid-brew
- Plant tannins and harsh polyphenols dissolve only late
- Water paths over-extract grounds directly along the fissure
- Denser bypassed areas remain under-extracted and sour
- Finer grinds increase surface area and tighten flow resistance
- Greater bed resistance extends the contact time for water
- Slower flow allows sweet compounds time to dissolve
- TDS measures dissolved concentration while yield tracks total solubles taken
- Excess bypass water lowers strength while leaving bitter over-extracted compounds
- A low TDS cup can still suffer from over-extraction yield
- Fixing dry coffee mass establishes a constant baseline
- Shifting grind size calibrates resistance and shot timing
- Fine-tuning liquid output balances final flavor extraction
- Positively charged mineral ions physically bind to oxygen-rich coffee flavor compounds.
- Magnesium binds especially tightly to light, volatile fruit acids and aromatics.
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 The Mechanics of Coffee 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.
At what point in your brew do sweet sugars and rich aromatics mostly wash out?
Get it right to open this lesson and 23 more in the app.
Where The Mechanics of Coffee Flavor takes you
- 1
Mastering the Extraction
- Dialing In: Diagnosing Extraction
- The Hidden Variables: Water, Heat, and Agitation
- 2
Tasting with Precision
- Deconstructing Acidity, Sweetness, and Body
- Cupping Practice and Defect Detection
- 3
Decoding the Bean
- Post-Harvest Processing and Flavor Pathways
- Terroir, Cultivars, and Elevation
- 4
Roast Chemistry and Freshness
- Roast Dynamics: Heat Transfer and Transformation
- Degassing, Oxidation, and Preservation
4 sections · 8 units · 24 levels. Built to play, not to enroll.
You pick the voice
The Mechanics of Coffee Flavor 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 The Mechanics of Coffee Flavor today.
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