Coffee Extraction and Barista Craft
Bridge the gap between home brewer and working barista. Master dial-in adjustments, milk thermodynamics, sensory calibration, and water chemistry behind the bar.
Like Duolingo, but for Coffee Extraction and Barista Craft. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
21 levels across 3 sections, about 42 minutes end to end, roughly 8 days at five minutes a day. It moves through Dialing In and Extraction Control; Milk Science and Sensory Evaluation; and Bean Origins, Water, and Equipment Care. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android
Key ideas in Coffee Extraction and Barista Craft
- Locking dose and beverage yield isolates grind size as the single moving tuning variable.
- Adjusting grind finer increases contact time and puck resistance without shifting recipe ratios.
- Changing dose or yield simultaneously confounds extraction yield and masks the root issue.
- Stopping shots on target yield treats time as an observational symptom of grind resistance.
- Cutting a shot solely by time produces arbitrary beverage yields and uncalibrated strengths.
- Shot duration signals whether puck grind size needs to shift coarser or finer for the next pull.
- Uneven coffee distribution creates localized low-density zones that water cuts channels through.
- Tamping at an angle causes side-channeling along the lower edge of the portafilter basket.
- Aggressive edge tapping cracks the settled dry coffee bed and breaks the basket seal.
- High air moisture swells roasted porous coffee beans, reducing puck flow resistance.
- Motor thermal expansion narrows burr clearance during continuous rush-hour operation.
- Atmospheric shifts require baristas to fine-tune collars even without changing bean bags.
- Bright organic acids and high-density crema salts wash out in the initial seconds.
- Sweet caramelized sugars and balanced aromatic oils dominate the middle extraction window.
- Astringent plant cellulose, bitter tannins, and diluted watery compounds exit at the tail end.
- Sequencing the flavor and sensory compounds extracted across a split salami shot from start to finish
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 Coffee Extraction and Barista 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.
When dialing in, why keep your dose of grounds and cup yield the exact same weight?
Get it right to open this lesson and 20 more in the app.
Where Coffee Extraction and Barista Craft takes you
- 1
Dialing In and Extraction Control
- Calibrating the Daily Espresso Dial-In
- Diagnosing Extraction and Flow Mechanics
- Filter Brewing Dynamics and Pour Control
- 2
Milk Science and Sensory Evaluation
- Milk Chemistry and Microfoam Texturing
- Cupping Protocols and Palate Calibration
- 3
Bean Origins, Water, and Equipment Care
- Processing Methods and Green Bean Dynamics
- Water Composition and Machine Diagnostics
3 sections · 7 units · 21 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
Coffee Extraction and Barista Craft is taught in the Explain Like I'm 5 style: no big words. promise.. 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
Coffee Extraction and Tasting
Master professional cupping protocols, dial in modern espresso ratios, and engineer precise extractions. Explore water chemistry, milk physics, and sensory analysis to unlock elite-level coffee craft.
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.
Espresso and Barista Craft
Bridge the gap between pulling basic shots and commanding an espresso bar. Learn the extraction mechanics, microfoam physics, sensory calibration, and station workflows that define professional barista craft.
Dialing In Great Coffee
Move beyond basic brew recipes to control the mechanics that determine coffee flavor. Learn to diagnose extraction flaws by taste, balance water chemistry, and read bean processing to brew with intention.
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.
Dialing In Your Coffee
Move beyond the recipe and learn to manipulate variables like a professional barista to find the 'sweet spot' in every bean.
Start Coffee Extraction and Barista Craft today.
Download Tomo, search Coffee Extraction and Barista Craft, and play your first lesson in under a minute.