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

Brewing Better Coffee

Transform your everyday coffee routine into a delicious ritual. Learn to dial in your brew, decode coffee bags, and understand where exceptional flavors actually come from.

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

21 levels across 3 sections, about 42 minutes end to end, roughly 8 days at five minutes a day. It moves through Getting Great Flavor at Home, Choosing Beans and Roasts, and Where the Flavor Comes From. It starts from scratch.

21 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Bennie the Bear, the guide who teaches the Brewing Better Coffee course
Brewing Better Coffee
with Bennie the Bear
21
Levels
3
Sections
5
Min/day
What you'll learn

Key ideas in Brewing Better Coffee

  • A brewed cup of coffee is over 98% water
  • Chlorine and mineral off-tastes in tap water directly transfer into the finished brew
  • Using filtered water provides a clean background that lets coffee flavors shine
  • Pre-ground coffee loses its delicate aromatics within hours of exposure to air
  • Whole beans protect volatile aromatic compounds inside their structure until cracked open
  • Grinding directly before brewing releases fresh aromas straight into your cup
  • Scoops measure volume, which fluctuates wildly based on bean size, roast darkness, and settle
  • A digital scale measures exact mass, locking in a consistent coffee-to-water ratio every time
  • Accidental variation in coffee mass leads directly to unpredictable weak or muddy cups
  • Water around 30 to 60 seconds off the boil efficiently dissolves desirable sugars and flavors
  • Water that is too cool cannot properly extract coffee solids, leaving the cup sour and thin
  • Water applied at a raging boil can scorch delicate grounds and over-extract harsh bitterness
  • Rinsing washes away loose wood pulp and starch fibers so your coffee doesn't taste like wet cardboard
  • The hot rinse water warms up the dripper or mug so it doesn't sap heat from the brew
  • Discarding the rinse water before brewing is necessary so it doesn't dilute your coffee
  • Acids dissolve almost instantly at the very start of a brew
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 Brewing Better Coffee 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.

Fresher Beans and Better Water

What happens if your tap water tastes like chlorine or heavy minerals when you brew coffee?

Get it right to open this lesson and 20 more in the app.

Course map

Where Brewing Better Coffee takes you

  1. 1

    Getting Great Flavor at Home

    • Quick Fixes for a Better Morning Cup
    • Diagnosing Sour and Bitter Notes
    • Matching the Method to Your Taste
  2. 2

    Choosing Beans and Roasts

    • Reading a Coffee Bag Like a Pro
    • How Roasting Shapes the Bean
  3. 3

    Where the Flavor Comes From

    • From Fruit to Seed: Processing Methods
    • The Tree and the Terroir

3 sections · 7 units · 21 levels. Built to play, not to enroll.

How it's taught

You pick the voice

This course
The Bestie

Brewing Better Coffee 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.

Start free

Start Brewing Better Coffee today.

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