Food & DrinkThe BestieBeginner
Better Coffee at Home, a free food & drink course on Tomo

Better Coffee at Home

Unlock the simple mechanics behind making a delicious cup of coffee every morning. Learn how to diagnose off-flavors, control your brew, and choose beans that match your taste.

Like Duolingo, but for Better Coffee at Home. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

A short one: 10 levels across 2 sections, about 20 minutes end to end, roughly 4 days at five minutes a day. It moves through Dialing In Your Daily Cup and Choosing and Caring for Beans. It starts from scratch.

10 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Barnaby the Bear, the guide who teaches the Better Coffee at Home course
Better Coffee at Home
with Barnaby the Bear
10
Levels
2
Sections
5
Min/day
What you'll learn

Key ideas in Better Coffee at Home

  • Brew ratio controls how concentrated or watery coffee tastes in the cup
  • A ratio of 1 part coffee to 15–17 parts water is the standard sweet spot
  • Using more coffee grounds for the same amount of water increases strength
  • Finer grinds expose more coffee surface area to water
  • Higher surface area causes flavors to dissolve into water more rapidly
  • Coarse grinds slow down extraction because water takes longer to reach the center of the particle
  • Water just off the boil (roughly 30 to 60 seconds off a rolling boil) is ideal for extracting sweetness
  • Boiling-hot, violently bubbling water can extract harsh, burnt notes from coffee
  • Warm or lukewarm water under-extracts, leaving coffee sour and flat
  • Finer grinds extract rapidly and require very short contact time to avoid bitterness
  • Coarser grinds extract slowly and need minutes or hours of soaking to pull out rich flavor
  • Bright fruit acids dissolve fastest and wash out first
  • Sweet sugars require more contact time to extract
  • Harsh, bitter plant fibers dissolve last of all
  • Under-extraction happens when brewing stops too early
  • Acids and salty compounds extract first without enough sweet sugars to balance them
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 Better Coffee at Home 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 In Ratio and Grind

When you're starting out, what ratio of coffee to water gives the most balanced cup?

Get it right to open this lesson and 9 more in the app.

Course map

How to learn Better Coffee at Home, step by step

Go in order. 10 short levels across 2 sections, about 20 minutes in all, five minutes a day.

  1. 1

    Dialing In Your Daily Cup

    • The Core Levers of Coffee Flavor
    • Diagnosing Sour, Bitter, and Balanced
  2. 2

    Choosing and Caring for Beans

    • How Roast and Process Shape Taste
    • Buying and Storing for Peak Freshness

2 sections · 4 units · 10 levels. Built to play, not to enroll.

Questions

Questions about Better Coffee at Home

  1. How do I learn Better Coffee at Home?

    Go in order: start with Dialing In Your Daily Cup, then Choosing and Caring for Beans. On Tomo that's 10 short levels, about 20 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 Better Coffee at Home?

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

  3. Is the Better Coffee at Home course free?

    Yes. Better Coffee at Home 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 Better Coffee at Home?

    10 levels across 2 sections, about 20 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 Better Coffee at Home?

    No. It's pitched at a beginner 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.

Add Tomo to ChatGPT
How it's taught

You pick the voice

This course
The Bestie

Better Coffee at Home 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.

Start free

Start Better Coffee at Home today.

Download Tomo, search Better Coffee at Home, and play your first lesson in under a minute.