Brewing Better Coffee
Transform your everyday morning cup from bitter or sour into sweet, balanced coffee. Learn the core brewing ratio, how to diagnose extraction by taste, and how grind and water make all the difference.
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.
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 Dialing In the Cup and The Essential Levers. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in Brewing Better Coffee
- Dark roast beans puff up and lose moisture, making them lighter and less dense than light roast beans
- A spoonful of dark roast holds less actual coffee by weight than the same spoon filled with light roast
- Weighing coffee on a scale ensures the same amount of coffee goes into the brew every time
- The standard balanced baseline brew ratio is 1:16 (1 part coffee to 16 parts water by weight)
- Multiplying your coffee dose in grams by 16 gives the exact water target for a balanced cup
- Using 1:16 keeps strength consistent whether making a single mug or a full pot
- Fresh coffee grounds trap carbon dioxide gas that repels brew water
- Pre-wetting with a small splash of water (the bloom) releases trapped gas as visible bubbles
- Water can only saturate and extract flavors evenly once the trapped gas escapes
- Water straight at a rolling boil (212°F / 100°C) is too hot and scorches grounds, pulling out harsh, astringent flavors
- Waiting 30 to 60 seconds off the boil drops water into the ideal brewing range
- Coffee beans contain natural oils that coat carafes, baskets, and mugs after every brew
- Leftover coffee oils turn rancid over time and dissolve into fresh coffee
- Scrubbing away oily residue with warm soapy water immediately eliminates this harsh off-flavor
- Water washes out sour acids and salty notes first before sugars dissolve
- Cutting a brew short or under-extracting leaves sharp acidity unbalanced by sweetness
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
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.
Here's what playing it feels like
A real question from this course. Take your best guess.
You scoop one level tablespoon of dark roast beans and one of light roast. What happens?
Get it right to open this lesson and 11 more in the app.
How to learn Brewing Better Coffee, step by step
Go in order. 12 short levels across 2 sections, about 24 minutes in all, five minutes a day.
- 1
Dialing In the Cup
- The Baseline Brew: Getting the Ratio Right
- Diagnosing Taste: Fixing Sour and Bitter
- 2
The Essential Levers
- Grind Size: Matching Particle to Method
- Beans and Water: Freshness, Roasts, and Purity
2 sections · 4 units · 12 levels. Built to play, not to enroll.
Questions about Brewing Better Coffee
How do I learn Brewing Better Coffee?
Go in order: start with Dialing In the Cup, then The Essential Levers. On Tomo that's 12 short levels, about 24 minutes in all, played five minutes a day. Start free and play the first level in under a minute.
Is there a Duolingo-style app for Brewing Better Coffee?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Brewing Better Coffee is one of its free courses, and you can type any other topic to get a course of your own.
Is the Brewing Better Coffee course free?
Yes. Brewing Better Coffee is playable on Tomo's free plan, which doesn't expire. No credit card, no waitlist. Download the app and start your first lesson.
How long does it take to learn Brewing Better Coffee?
12 levels across 2 sections, about 24 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.
Do I need any background to start Brewing Better Coffee?
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.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
Brewing Better Coffee 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 Brewing Better Coffee today.
Download Tomo, search Brewing Better Coffee, and play your first lesson in under a minute.