Dialing in the Perfect Cup
Like Duolingo, but for Dialing in the Perfect Cup. 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 Dialing in the Perfect Cup
- Acids are the first compounds to dissolve from coffee grounds
- Bitterness and astringency are the final stages of coffee extraction
- Under-extraction occurs when water hasn't yet pulled out the sugars
- Tannins are heavy plant compounds that create a drying mouthfeel
- A sour or salty profile is the primary indicator of an incomplete brew
- Over-extraction pulls out harsh chemicals that mask the coffee's sweetness
- Identifying the cause of a sharp, thin, sour cup of coffee
- Recognizing the sensory indicators of over-extraction
- Coffee extraction follows a predictable chemical timeline
- The sweet spot occurs after acidity but before bitterness
- Heavier bitter compounds require the most contact time to dissolve
- The Salami Shot isolates the flavor stages of a single extraction
- Tasting brew segments separately reveals where sweetness peaks
- This technique helps identify exactly when to stop a future brew
- The sequence of flavor extraction during a brew
- Changing multiple variables makes it impossible to identify the fix
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 Dialing in the Perfect Cup 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 let your coffee brew for too long, which flavor profile usually shows up last?
Get it right to open this lesson and 10 more in the app.
Where Dialing in the Perfect Cup takes you
Move beyond basic brewing and learn to manipulate extraction, water chemistry, and bean profiles to craft professional-grade coffee at home.
- 1
Mastering the Extraction Loop
- The Flavor Compass
- Precision Grinding and Flow
- 2
The Science of the Sip
- Water: The Invisible Solvent
- Decoding Origin and Process
2 sections · 4 units · 11 levels. Built to play, not to enroll.
You pick the voice
Dialing in the Perfect Cup 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 Dialing in the Perfect Cup today.
Download Tomo, search Dialing in the Perfect Cup, and play your first lesson in under a minute.