The Home Barista's Espresso Guide
Like Duolingo, but for The Home Barista's Espresso Guide. 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 The Home Barista's Espresso Guide
- Espresso is an emulsion of oils and water
- Drip coffee is a filtered infusion
- Pressure forces oils into a stable emulsion
- Gravity-fed brewing cannot produce the same texture
- The fundamental physical difference between espresso and drip coffee
- The role of pressure in creating espresso's unique texture
- Crema is the hallmark of a true espresso
- Espresso requires 9 bars of pressure
- Crema is composed of CO2 and emulsified oils
- Drip coffee relies on gravity
- Distinguishing between espresso and strong drip coffee
- Identifying the signature aromatic foam of espresso
- Espresso's intensity allows it to cut through milk
- Pressure must build before emulsion occurs
- Drip coffee becomes watery when diluted with milk
- Crema is the final visual result of the 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 The Home Barista's Espresso Guide 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.
Unlike a simple black coffee, how would a scientist describe the physical state of an espresso?
Get it right to open this lesson and 169 more in the app.
Where The Home Barista's Espresso Guide takes you
Master the art of the perfect espresso shot and learn how to build every classic cafe drink right in your own kitchen. From silky lattes to bold americanos, you'll learn the exact ratios that make each drink unique.
- 1
Your First Perfect Shot
- What makes an espresso an espresso?
- The golden rule of the 1:2 ratio
- Timing your extraction for sweetness
- How to tell if your shot is 'good' by looking at it
- 2
The Milky Classics
- The Latte: The king of milky coffee
- The Cappuccino: Balancing foam and liquid
- The Flat White: The secret to velvety texture
- Stretching vs. Texturing: Getting the milk right
- Pouring techniques for a clean finish
- 3
Short, Strong, and Punchy
- The Macchiato: Just a stain of milk
- The Cortado: The perfect 1:1 balance
- The Piccolo: A tiny latte with a big kick
- 4
Black Coffee Variations
- The Americano: Diluting without losing flavor
- The Long Black: Why the order of water matters
- The Lungo: Pulling a longer shot
- The Ristretto: Short, restricted, and intense
- 5
Troubleshooting Your Taste
- Why is my coffee sour? Fixing under-extraction
- Why is my coffee bitter? Fixing over-extraction
- The impact of water temperature on your drink
- Adjusting your grind size for better flow
- Using a scale to stay consistent every morning
- Channeling: Why your espresso looks messy
- 6
Choosing Your Ingredients
- Freshness: The 'roast date' secret
- Dark vs. Light roasts for milk drinks
- How different milks (oat, soy, cow) react to heat
- The role of water quality in your cup
- 7
Maintaining Your Setup
- Daily cleaning habits for better flavor
- Backflushing and keeping the group head clear
- Descaling: Protecting your machine's insides
- 8
The Science of the Sip
- What is Crema and does it actually taste good?
- Solubility: How water pulls flavor from beans
- The history of the espresso machine
- Pressure: Why 9 bars is the magic number
- The chemistry of steamed milk sugars
8 sections · 34 units · 170 levels. Built to play, not to enroll.
You pick the voice
The Home Barista's Espresso Guide 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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