Food & DrinkThe BestieIntermediate
Espresso: Dialing in the Perfect Shot, a free food & drink course on Tomo

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.

Like Duolingo, but for Espresso: Dialing in the Perfect Shot. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

19 levels across 3 sections, about 38 minutes end to end, roughly 8 days at five minutes a day. It moves through The Precision Workflow, Sensory and Variables, and Milk and Chemistry. It assumes you already know the basics.

19 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Eddie the Espresso Elephant, the guide who teaches the Espresso: Dialing in the Perfect Shot course
Espresso: Dialing in the Perfect Shot
with Eddie the Espresso Elephant
19
Levels
3
Sections
5
Min/day
What you'll learn

Key ideas in Espresso: Dialing in the Perfect Shot

  • Darker roasts are more porous and take up more physical space than dense light roasts
  • Light roasts are less soluble and require more water to extract sweetness
  • Volume-based dosing leads to inconsistent puck resistance and unpredictable flow rates
  • Dark roasts extract quickly and benefit from shorter ratios to avoid heavy bitterness
  • Why weighing the dose is superior to using volume-based measurements
  • Adjusting brew ratios based on roast profile
  • Shot time as a proxy for grind size
  • Manual weight-based stopping
  • Why weighing the dose is superior to volume
  • The benefit of manual weight-based stopping
  • Acids are the most soluble and extract first, followed by sugars
  • Understanding shot time as a proxy for grind size rather than a flavor goal
  • Bitterness and astringency dominate the end of the shot as solids are depleted
  • The benefit of manual weight-based stopping over volumetric timers
  • The sequential extraction of flavors in an espresso shot
  • Smaller particles create more surface area and pack tighter to resist water
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 Espresso: Dialing in the Perfect Shot 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.

Weight vs. Volume

Why do light-roasted coffee beans typically need a longer brew ratio with more water?

Get it right to open this lesson and 18 more in the app.

Course map

How to learn Espresso: Dialing in the Perfect Shot, step by step

Go in order. 19 short levels across 3 sections, about 38 minutes in all, five minutes a day.

  1. 1

    The Precision Workflow

    • The Golden Ratio and Yield
    • Managing the Puck
  2. 2

    Sensory and Variables

    • Dialing by Taste
    • Advanced Extraction Variables
  3. 3

    Milk and Chemistry

    • Microfoam Science and Integration
    • The Chemistry of the Bean and Water

3 sections · 6 units · 19 levels. Built to play, not to enroll.

Questions

Questions about Espresso: Dialing in the Perfect Shot

  1. How do I learn Espresso: Dialing in the Perfect Shot?

    Go in order: start with The Precision Workflow, then Sensory and Variables, then Milk and Chemistry. On Tomo that's 19 short levels, about 38 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 Espresso: Dialing in the Perfect Shot?

    Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Espresso: Dialing in the Perfect Shot is one of its free courses, and you can type any other topic to get a course of your own.

  3. Is the Espresso: Dialing in the Perfect Shot course free?

    Yes. Espresso: Dialing in the Perfect Shot 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 Espresso: Dialing in the Perfect Shot?

    19 levels across 3 sections, about 38 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 Espresso: Dialing in the Perfect Shot?

    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

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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

Espresso: Dialing in the Perfect Shot 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.

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Start free

Start Espresso: Dialing in the Perfect Shot today.

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