Food & DrinkThe BestieBeginner
Espresso Drinks and Ratios, a free food & drink course on Tomo

Espresso Drinks and Ratios

Decode the café menu by understanding espresso-to-milk ratios, foam textures, and brew styles. Learn exactly what makes a cortado different from a flat white and how to order or make your ideal cup.

Like Duolingo, but for Espresso Drinks and Ratios. 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 The Espresso Core and Small Milk Drinks and Big Milk Cups, Water, and Brew Styles. It starts from scratch.

12 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Barista Barnaby, the guide who teaches the Espresso Drinks and Ratios course
Espresso Drinks and Ratios
with Barista Barnaby
12
Levels
2
Sections
5
Min/day
What you'll learn

Key ideas in Espresso Drinks and Ratios

  • The brew ratio compares dry coffee grounds to the liquid espresso in the cup
  • A standard espresso uses roughly a 1:2 brew ratio
  • An 18g coffee dose targets roughly 36g of liquid espresso
  • A ristretto stops extraction early at about a 1:1 ratio
  • Sweet and acidic flavors extract first, while bitter flavors extract last
  • Cutting the shot early keeps the mouthfeel syrupy and dense
  • Ristretto pulls at roughly 1:1
  • Standard espresso pulls at roughly 1:2
  • Lungo pulls at roughly 1:3 or more, washing through extra bitter notes
  • Crema is primarily trapped carbon dioxide gas and coffee oils
  • Crema signals that the coffee beans were freshly roasted
  • Crema by itself tastes harsh, ashy, or bitter rather than sweet
  • Espresso naturally stratifies into distinct layers as it brews into the cup
  • The bottom layer is dense and sharp, while the top crema is bitter foam
  • Stirring combines the separated layers into a harmonious, balanced sip
  • Ristretto pulls at roughly 1:1, standard espresso at 1:2, and lungo at 1:3 or more
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 Drinks and Ratios 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.

Measuring Your Espresso Shot

What is the typical brew ratio for a standard espresso?

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

Course map

Where Espresso Drinks and Ratios takes you

  1. 1

    The Espresso Core and Small Milk Drinks

    • The Espresso Shot: Lengths and Ratios
    • Small Milk Drinks: Cortado, Macchiato, and Flat White
  2. 2

    Big Milk Cups, Water, and Brew Styles

    • Large Milk Drinks: Cappuccino, Latte, and Mocha
    • Water, Ice, and Extraction Styles

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

How it's taught

You pick the voice

This course
The Bestie

Espresso Drinks and Ratios is taught in the 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

More Food & Drink on Tomo

Decoding the Espresso Menu course icon

Decoding the Espresso Menu

Bestie

Demystify every drink on the specialty cafe board by looking past marketing labels to what actually sits in the cup. Learn how volume, milk texture, and extraction geometry define drinks from cortados to allongés.

10 levels20mIntermediate
Espresso Drink Proportions course icon

Espresso Drink Proportions

Explain Like I'm 5

Learn the exact espresso, milk, and water proportions behind every classic cafe order. Understand how cup size, foam texture, and ratio transform a standard double shot into cortados, cappuccinos, lattes, and beyond.

11 levels22mBeginner
Understanding Coffee Drinks course icon

Understanding Coffee Drinks

Professor

Demystify the café chalkboard and order with complete confidence. Learn how varying ratios of espresso, water, and textured milk create drinks from cortados to flat whites. Discover how texture, dilution, and temperature dramatically shape every cup.

25 levels50mBeginner
Espresso Drinks: From Macchiato to Flat White course icon

Espresso Drinks: From Macchiato to Flat White

Professor

Move beyond the basic brew and master the nuanced world of the espresso menu. Learn the precise ratios, milk textures, and regional variations that turn a simple shot into a craft beverage.

24 levels48mIntermediate
Barista Craft: The Starbucks Method course icon

Barista Craft: The Starbucks Method

Professor

Master the art of high-volume espresso craft, from the perfect microfoam vortex to the precise sequencing of shaken and layered beverages.

20 levels40mIntermediate
The Art of the Espresso Bar course icon

The Art of the Espresso Bar

Professor

Move beyond the basic latte and master the subtle ratios that define world-class coffee. Learn to navigate a specialty menu and understand how milk texture and water volume transform a single bean into dozens of distinct experiences.

24 levels48mIntermediate
Start free

Start Espresso Drinks and Ratios today.

Download Tomo, search Espresso Drinks and Ratios, and play your first lesson in under a minute.