Understanding Coffee Drinks
Demystify the café chalkboard and order with complete confidence. Learn how varying ratios of espresso, water, and textured milk create drinks from cortados to flat whites. Discover how texture, dilution, and temperature dramatically shape every cup.
Like Duolingo, but for Understanding Coffee Drinks. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
25 levels across 3 sections, about 50 minutes end to end, roughly 10 days at five minutes a day. It moves through The Core Espresso Baseline, The Milk Spectrum, and Modern Styles and Personalizing the Cup. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in Understanding Coffee Drinks
- Modern cafes default to pulling a doppio (double shot) for standard drinks
- Most commercial espresso baskets are sized for double shots
- Ordering a solo requires explicitly asking to get half the usual volume and caffeine
- Espresso relies on high pressure to create a dense, concentrated beverage rather than a full mug of coffee
- Standard espresso follows roughly a 1:2 brew ratio of grounds to liquid
- 18 grams of dry grounds produces around 36 grams (or roughly an ounce and a half) of liquid
- The early part of an espresso pull extracts sweetness and acidity before deeper bitterness
- A ristretto cuts the water flow early, stopping before bitter compounds extract
- Ristretto shots produce a smaller, denser, and naturally sweeter sip than standard espresso
- A lungo runs extra water through the grounds, resulting in a higher volume and more bitter cup
- A ristretto uses less water, keeping only early sweet and acidic flavors
- A standard espresso strikes a middle balance between yield and strength
- Crema is foam created by carbon dioxide escaping under pressure during extraction
- Abundant crema means the coffee beans were freshly roasted and still retain trapped gas
- A generous layer of crema does not automatically mean the coffee beans taste high quality or well-roasted
- An Americano combines espresso shots with hot water to make a full cup
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 Understanding Coffee Drinks 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.
Why do most cafes default to making double shots instead of singles?
Get it right to open this lesson and 24 more in the app.
Where Understanding Coffee Drinks takes you
- 1
The Core Espresso Baseline
- Espresso Essentials: Solo, Doppio, and Flow Variations
- Diluted Drinks: Americano, Long Black, and Brew Boosters
- 2
The Milk Spectrum
- Short Milk Drinks: Macchiato, Cortado, and Piccolo
- The Classic Milk Giants: Cappuccino, Latte, and Flat White
- Steaming Mechanics and Milk Texture
- 3
Modern Styles and Personalizing the Cup
- Chilled and Shaken Espresso Variations
- Sweet Treats and Dessert Coffee Drinks
- Dialing In Your Personal Order
3 sections · 8 units · 25 levels. Built to play, not to enroll.
You pick the voice
Understanding Coffee Drinks 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 Understanding Coffee Drinks today.
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