Food & DrinkExplain Like I'm 5Intermediate
Espresso and Milk: The Perfect Ratio, a free food & drink course on Tomo

Espresso and Milk: The Perfect Ratio

Like Duolingo, but for Espresso and Milk: The Perfect Ratio. 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: 8 levels across 2 sections, about 16 minutes end to end, roughly 3 days at five minutes a day. It moves through Texture and Technique and The Taxonomy of Ratios. It assumes you already know the basics.

8 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Milo the Milk-Frothing Monkey, the guide who teaches the Espresso and Milk: The Perfect Ratio course
Espresso and Milk: The Perfect Ratio
with Milo the Milk-Frothing Monkey
8
Levels
2
Sections
5
Min/day
What you'll learn

Key ideas in Espresso and Milk: The Perfect Ratio

  • Air must be introduced early while the milk is cold to create fine bubbles
  • Proteins like casein act as the 'scaffolding' that holds air bubbles in place
  • The 'rolling' phase uses the vortex to break down bubbles into a glossy texture
  • Fats coat the bubbles to create a smooth, velvet-like texture on the tongue
  • Swirling the pitcher after steaming keeps the foam and liquid integrated
  • Skim milk foams easily due to high protein but lacks the stability of whole milk
  • The sequence of air integration versus texture refinement
  • The functional roles of milk components in latte art and mouthfeel
  • The impact of temperature on milk flavor profile
  • The relationship between milk temperature and bubble stability
  • Purging before steaming clears condensed water
  • Purging after steaming clears milk sucked into the wand
  • Dried milk buildup inside the tip creates a breeding ground for bacteria
  • Proper steam wand maintenance and its effect on drink quality
  • Pouring from a height uses gravity to pierce the espresso's crema layer
  • Submerging the milk early creates a dark, uniform brown canvas for art
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 and Milk: The Perfect Ratio 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.

The Magic of Milk Bubbles

What part of the milk acts like a 'scaffolding' or frame to keep bubbles from popping?

Get it right to open this lesson and 7 more in the app.

Course map

Where Espresso and Milk: The Perfect Ratio takes you

Go beyond the basic latte to master the precise textures and ratios that define the world's most iconic espresso drinks.

  1. 1

    Texture and Technique

    • Mastering Microfoam
    • The Geometry of the Pour
  2. 2

    The Taxonomy of Ratios

    • Defining the Classics

2 sections · 3 units · 8 levels. Built to play, not to enroll.

How it's taught

You pick the voice

This course
Explain Like I'm 5

Espresso and Milk: The Perfect Ratio 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.

Start free

Start Espresso and Milk: The Perfect Ratio today.

Download Tomo, search Espresso and Milk: The Perfect Ratio, and play your first lesson in under a minute.