The Barista's Craft
Move beyond basic button-pressing and master the levers of espresso extraction and milk texture. Learn to diagnose flavor flaws by taste, eliminate channeling through deliberate puck prep, and steam glossy microfoam every time.
Like Duolingo, but for The Barista's Craft. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
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 Controlling the Extraction and Texturing Milk and Building Drinks. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android
Key ideas in The Barista's Craft
- Extending liquid yield extracts more sugars and bitterness to quickly balance acidity
- Changing grind size requires re-purging and resets puck flow resistance unpredictable ways
- Liquid yield alters the extraction yield percentage much faster than changing burr spacing
- Contact time is merely a metric showing how much the coffee puck resists water flow
- Taste balance overrides rigid clock targets like the conventional 25-to-30-second rule
- High-clarity light roasts often taste best at faster flow times with lower puck resistance
- Sour under-extraction calls for increasing the brew ratio to pull more balancing solids
- Astringent over-extraction calls for cutting liquid output earlier to omit bitter compounds
- Dialing in mouthfeel without shifting flavor balance is accomplished by fine-tuning grind size
- Dark syrupy drops emerge first as concentrated acids and oils dissolve into the cup
- Flow transitions into a thick, striping stream of rich hazelnut crema as solids extract
- Puck resistance collapses as solubles deplete, triggering rapid blonde flow at the end
- Grinder chutes hold retained grounds from the prior setting that contaminate new doses
- Pulling a shot immediately after an adjustment tastes like a mix of two different grind sizes
- Purging a few grams clears the grind chamber so changes reflect accurately in the basket
- Water rushes through fissures, over-extracting bitter compounds along the paths
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 Barista's Craft 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 is shifting your grind size often slower than simply adjusting your liquid yield?
Get it right to open this lesson and 11 more in the app.
How to learn The Barista's Craft, step by step
Go in order. 12 short levels across 2 sections, about 24 minutes in all, five minutes a day.
- 1
Controlling the Extraction
- Dialing In by Ratio and Grind
- Puck Preparation and Channeling
- 2
Texturing Milk and Building Drinks
- Microfoam Physics and Steaming
- Drink Architecture and Pour Calibration
2 sections · 4 units · 12 levels. Built to play, not to enroll.
Questions about The Barista's Craft
How do I learn The Barista's Craft?
Go in order: start with Controlling the Extraction, then Texturing Milk and Building Drinks. On Tomo that's 12 short levels, about 24 minutes in all, played five minutes a day. Start free and play the first level in under a minute.
Is there a Duolingo-style app for The Barista's Craft?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. The Barista's Craft is one of its free courses, and you can type any other topic to get a course of your own.
Is The Barista's Craft free?
Yes. The Barista's Craft is playable on Tomo's free plan, which doesn't expire. No credit card, no waitlist. Download the app and start your first lesson.
How long does it take to learn The Barista's Craft?
12 levels across 2 sections, about 24 minutes of play in total. It's built for five minutes a day, so you finish it a little at a time instead of all at once.
Do I need any background to start The Barista's Craft?
No. It's pitched at an intermediate level, so it starts where you are and builds up. If you can tap a phone, you can start.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
The Barista's Craft is taught in 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.
More Food & Drink on Tomo
Barista Craft Behind the Bar
Step behind the commercial machine and master professional barista technique. Learn to dial in espresso by taste, texture silky microfoam, execute standard cafe menus, and keep a high-volume bar running smoothly.
Barista Craft and Calibration
Bridge the gap between basic espresso brewing and professional sensory control. Learn how to diagnose extraction flaws by taste, eliminate channeling through puck prep, and texture silky microfoam with precision.
Espresso Drinks: Craft and Technique
Move beyond guesswork to dial in balanced espresso shots and texture cafe-grade microfoam. Master extraction diagnostics, milk chemistry, and drink ratios to build classic cafe beverages with consistency.
Espresso Mechanics and Barista Craft
Bridge the gap between pulling basic shots and commanding the espresso bar. Master dial-in variables, diagnose extraction flaws by taste, steam silky microfoam, and understand the physics inside the portafilter.
Craft Espresso and Cafe Drinks
Learn the mechanics of dialing in balanced espresso shots, steaming silky microfoam, and constructing specialty coffee shop drinks. Build the palate and technical precision of a craft barista.
Espresso Craft: Dialing In and Pouring
Move beyond button-pressing into precise extraction control and fluid dynamics. Learn to dial in coffee by taste, fix channeling under pressure, and texture silky microfoam for consistent pours.
Start The Barista's Craft today.
Download Tomo, search The Barista's Craft, and play your first lesson in under a minute.