Espresso Extraction and Barista Technique
Move beyond basic coffee recipes to actively controlling espresso extraction. Master grind-to-yield dialing, puck preparation physics, microfoam steaming, and sensory troubleshooting.
Like Duolingo, but for Espresso Extraction and Barista Technique. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
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 Dialing In the Shot and Texture and Taste Diagnosis. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android
Key ideas in Espresso Extraction and Barista Technique
- Increasing yield pushes past early sour acids into sweeter compounds
- Higher liquid yield dilutes overall strength while raising extraction
- Stopping earlier concentrates sour acids and limits dissolved solids
- Shot time is a passive symptom of how much the puck resists water
- Cutting off pump time directly only truncates yield without fixing flow
- Changing resistance via grind or dose is how you adjust shot duration
- Finer particles expose more surface area for rapid solute diffusion
- Tighter interstitial gaps create higher hydraulic resistance to pump pressure
- Coarser grounds allow water to rush through larger channels between particles
- Fixing the basket dose first stabilizes headspace and puck geometry
- Targeting a fixed liquid yield establishes the base brew ratio
- Moving only grind size isolates puck resistance until extraction is dialed
- Water rapidly erodes localized pathways of least resistance through the puck.
- Grounds along the fissures over-extract bitter compounds while bypassed coffee under-extracts sour.
- Channeling produces erratic flow rates and simultaneously harsh, hollow cup flavors.
- Frictional heat and static electricity bind finely ground coffee particles into dense clumps.
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 Espresso Extraction and Barista Technique 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 pull a larger liquid yield from the same dose of coffee grounds, what happens to the cup?
Get it right to open this lesson and 10 more in the app.
Where Espresso Extraction and Barista Technique takes you
- 1
Dialing In the Shot
- Dialing In: Grind, Yield, and Time
- Puck Preparation and Channeling
- 2
Texture and Taste Diagnosis
- Microfoam Dynamics and Steaming
- Sensory Troubleshooting and Extraction Curves
2 sections · 4 units · 11 levels. Built to play, not to enroll.
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
Espresso Extraction and Barista Technique 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
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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.
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.
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.
Start Espresso Extraction and Barista Technique today.
Download Tomo, search Espresso Extraction and Barista Technique, and play your first lesson in under a minute.