The Home Barista's Essentials
Like Duolingo, but for The Home Barista's Essentials. 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 forever · No credit card · iPhone & Android

Key ideas in The Home Barista's Essentials
- The 1:2 ratio is the standard starting point for modern espresso
- An uneven or tilted puck causes water to flow through one side faster (channeling)
- The ratio compares the dry weight of coffee grounds to the liquid weight of the final drink
- Water follows the path of least resistance
- Doubling the input weight gives you the target output weight
- Consistency and a level surface are more important than raw downward force
- Applying the golden ratio to determine the correct yield for a shot
- Understanding the primary goal of tamping
- Crema is the CO2-rich foam that signifies freshness
- 25-30 seconds is the industry standard for a balanced extraction
- Tiger striping indicates a complex, well-extracted flavor profile
- Shots faster than 20 seconds usually taste sour and thin
- The color of the stream changes from dark to light as the extraction nears completion
- Shots longer than 35 seconds usually taste bitter and burnt
- Identifying visual indicators of a successful extraction
- Recognizing the ideal time window for a standard extraction
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 Essentials 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.
What happens if the coffee grounds in your portafilter aren't perfectly level before you brew?
Get it right to open this lesson and 11 more in the app.
Where The Home Barista's Essentials takes you
Transform your kitchen into a café by mastering the art of the perfect espresso shot and silky milk textures. Learn to build the world's most iconic coffee drinks with confidence and precision.
- 1
Mastering the Espresso Shot
- Pulling Your First Shot
- Fixing the Flavor
- 2
Milk and the Classic Menu
- Steaming Silky Microfoam
- Building the Espresso Menu
2 sections · 4 units · 12 levels. Built to play, not to enroll.
You pick the voice
The Home Barista's Essentials 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 Home Barista's Essentials today.
Download Tomo, search The Home Barista's Essentials, and play your first lesson in under a minute.