Food & DrinkThe BestieIntermediate
Barista Technique and Extraction, a free food & drink course on Tomo

Barista Technique and Extraction

Move past rigid recipes to run an espresso bar with technical confidence. Learn to diagnose extraction flaws by taste and flow, manipulate puck dynamics, texture consistent microfoam, and adapt parameters to any bean profile.

Like Duolingo, but for Barista Technique and Extraction. 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 Dialing and Shot Mechanics and Texture, Milk, and Bean Profiles. It assumes you already know the basics.

12 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Barnaby the Bearista, the guide who teaches the Barista Technique and Extraction course
Barista Technique and Extraction
with Barnaby the Bearista
12
Levels
2
Sections
5
Min/day
What you'll learn

Key ideas in Barista Technique and Extraction

  • The standard 1:2 ratio in 30 seconds is a starting calibration point rather than a universal standard for every bean
  • Light roasts frequently taste best when pulled longer or faster to highlight sweetness and tame dense acidity
  • Taste balance always overrides arbitrary clock and scale targets when dialing in espresso
  • Brew ratio dictates the final concentration of dissolved solids, directly controlling beverage body
  • Grind size changes water flow resistance and contact time, shifting overall extraction yield
  • Cutting yield earlier concentrates solubles into a thicker body without changing grind dynamics
  • Under-extraction leaves early-dissolving sharp acids dominant while lacking sweet solubles
  • Over-extraction pulls heavy, bitter polyphenols that create an astringent, drying mouthfeel
  • Properly balanced extraction blends bright acidity with deep dissolved sugars to coat the palate
  • Blonding occurs when desirable soluble sugars are spent and mostly diluted water passes through
  • The flow thins and loses viscosity as dissolved solids taper off late in the pull
  • Tiger striping and viscous mouse-tail streams indicate rich, ongoing lipid and solid extraction
  • Changing only one variable at a time isolates what caused the shot time to drift
  • Adjusting dry dose and grind setting simultaneously obscures which adjustment restored flavor
  • Grind setting directly regulates water resistance to counter drift caused by burr heat or humidity
  • Water carves paths of least resistance through low-density pockets in the coffee bed
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Barista Technique and Extraction 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.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Dialing Beyond the Timer

When working with dense, acidic light roasts, how do they often taste best?

Get it right to open this lesson and 11 more in the app.

Course map

How to learn Barista Technique and Extraction, step by step

Go in order. 12 short levels across 2 sections, about 24 minutes in all, five minutes a day.

  1. 1

    Dialing and Shot Mechanics

    • Dialing in Beyond Fixed Recipes
    • Puck Mechanics and Channeling Control
  2. 2

    Texture, Milk, and Bean Profiles

    • Microfoam Physics and Steaming Dynamics
    • Adapting Parameters to the Bean

2 sections · 4 units · 12 levels. Built to play, not to enroll.

Questions

Questions about Barista Technique and Extraction

  1. How do I learn Barista Technique and Extraction?

    Go in order: start with Dialing and Shot Mechanics, then Texture, Milk, and Bean Profiles. 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.

  2. Is there a Duolingo-style app for Barista Technique and Extraction?

    Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Barista Technique and Extraction is one of its free courses, and you can type any other topic to get a course of your own.

  3. Is the Barista Technique and Extraction course free?

    Yes. Barista Technique and Extraction is playable on Tomo's free plan, which doesn't expire. No credit card, no waitlist. Download the app and start your first lesson.

  4. How long does it take to learn Barista Technique and Extraction?

    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.

  5. Do I need any background to start Barista Technique and Extraction?

    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.

New

Tomo is in ChatGPT

Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.

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How it's taught

You pick the voice

This course
The Bestie

Barista Technique and Extraction 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.

Keep going

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Start free

Start Barista Technique and Extraction today.

Download Tomo, search Barista Technique and Extraction, and play your first lesson in under a minute.