Dialing In Espresso and Milk
Like Duolingo, but for Dialing In Espresso and Milk. 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: 11 levels across 2 sections, about 22 minutes end to end, roughly 4 days at five minutes a day. It moves through Diagnosing and Refining the Shot and Milk Physics and Drink Balance. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android
Key ideas in Dialing In Espresso and Milk
- Fixing dry dose and target liquid yield sets the baseline brew ratio first
- Changing grind size before fixing ratio introduces two moving variables at once
- Brew ratio establishes overall beverage concentration and initial extraction balance
- Sour, quick-finishing shots lack the slower-dissolving sugars that balance early acids
- Astringent, mouth-drying bitterness comes from over-extracting heavy polyphenols and tannins
- Taste guides whether the barista needs to extract more or less from the puck
- Finer particles expose more total surface area to dissolve solubles rapidly
- Tighter particle spacing creates higher hydraulic resistance that slows water flow
- Both effects compound to dramatically increase total shot extraction
- Shot duration serves as a diagnostic sanity check, not a mandatory flavor rule
- Sensory balance and taste trump arbitrary clock targets every time on the bar
- Adjusting grind to force a specific time on a balanced shot risks over-extracting it
- Grinders trap several grams of ground coffee inside the burr chamber and chute
- Purging clears out stale retained coffee ground at the previous collar setting
- Pulling an unpurged shot creates a deceptive hybrid test that misleads calibration
- High-velocity water rushes through cracks, over-extracting bitter tannins along channel walls
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 Dialing In Espresso and Milk 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.
When you start dialing in a brand-new bag of coffee, what should you lock down first?
Get it right to open this lesson and 10 more in the app.
Where Dialing In Espresso and Milk takes you
Bridge the gap between basic espresso pulling and cafe-quality consistency. Master extraction variables, diagnose channeling by taste and flow, and steam silky microfoam every time.
- 1
Diagnosing and Refining the Shot
- Dialing In by Taste and Ratio
- Puck Preparation and Channeling Control
- 2
Milk Physics and Drink Balance
- Microfoam Aeration and Pour Dynamics
- Bean Roast, Water, and Recipe Balance
2 sections · 4 units · 11 levels. Built to play, not to enroll.
You pick the voice
Dialing In Espresso and Milk 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.
More Food & Drink on Tomo
Espresso Extraction and Technique
Bridge the gap between pulling erratic shots and consistently crafting cafe-quality espresso. Learn the mechanics of puck prep, extraction diagnosis, flow profiling, and microfoam chemistry.
Espresso and Milk Craft
Move beyond basic brewing recipes and take deliberate control of your espresso machine. Diagnose extraction faults by taste, perfect silky microfoam texture, and dial in beans by roast profile.
Espresso: Dialing in the Perfect Shot
Move beyond the basic 'push-button' espresso and learn to manipulate variables like a professional barista. Master the physics of the puck, the chemistry of water, and the sensory skills required to diagnose any shot.
The Art of the Espresso Shot
Move beyond the button-press and master the variables that define a perfect extraction. Learn to diagnose flavors, manipulate brew ratios, and maintain professional-grade equipment.
Dialing In Espresso and Milk
Bridge the gap between basic button-pressing and barista craft. Learn to diagnose extraction defects by sight and taste, manipulate grind and yield variables, and steam silky microfoam with repeatable speed.
Roast and Extraction: The Espresso Method
Move beyond the basics of brewing to understand how roast chemistry and precision extraction physics create the perfect shot of espresso.
Start Dialing In Espresso and Milk today.
Download Tomo, search Dialing In Espresso and Milk, and play your first lesson in under a minute.