Coffee Connoisseur: Main Character Energy
Like Duolingo, but for Coffee Connoisseur: Main Character Energy. 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.
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 Daily Grind and The Barista's Secret Menu. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android

Key ideas in Coffee Connoisseur: Main Character Energy
- The 1:16 ratio balances flavor intensity with clarity
- Fine grinds increase surface area, leading to bitter over-extraction
- Total water weight is calculated by multiplying coffee weight by 16
- Coarse grinds allow water to pass too quickly, causing sour under-extraction
- Standard ratios prevent the brew from being too watery or too intense
- Grind size is the primary tool for adjusting the 'vibe' of the flavor
- Applying the 1:16 ratio to achieve a balanced brew
- Diagnosing flavor issues based on grind size
- Water above 205°F can scorch delicate oils, creating a burnt taste
- The bloom releases trapped CO2 that would otherwise block water
- The 195-205°F range is the 'sweet spot' for optimal chemical extraction
- A 30-second pause is required for the gas to fully escape
- Understanding the impact of water temperature on bean oils
- Digital scales measure mass, which is more accurate than volume
- Scoops vary by bean density and size, leading to inconsistent brews
- The sequence of the bloom in a pour-over process
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 Coffee Connoisseur: Main Character Energy 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 your coffee tastes unpleasantly bitter, what likely happened to the grounds during brewing?
Get it right to open this lesson and 11 more in the app.
Where Coffee Connoisseur: Main Character Energy takes you
Level up your coffee game with the sophistication of a 90s sitcom lead. Learn to dial in your brew, decode flavor profiles, and source beans that actually put some 'respect on the name'.
- 1
The Daily Grind
- Dialing In Your Signature Sip
- Decoding the Flavor Profile
- 2
The Barista's Secret Menu
- The Art of the Pivot
- Sourcing Like a Cheetah Girl
2 sections · 4 units · 12 levels. Built to play, not to enroll.
You pick the voice
Coffee Connoisseur: Main Character Energy 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 Coffee Connoisseur: Main Character Energy today.
Download Tomo, search Coffee Connoisseur: Main Character Energy, and play your first lesson in under a minute.