Brewing Better Coffee
Turn your daily morning coffee from a guessing game into a predictable, delicious ritual. Learn to dial in your grind and water, troubleshoot bitter or sour cups, and pick beans you will actually love.
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 Nailing the Daily Cup and Beans and Gear That Match Your Taste. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in Brewing Better Coffee
- Dark roast beans expand and lose moisture, making them less dense than light roasts
- A volume scoop holds fewer grams of dark roast than light roast
- Weighing beans on a scale ensures the exact same amount of coffee goes into the brew every time
- A standard brew ratio uses 1 gram of coffee for every 15 to 17 grams of water
- Dividing total water by ~15-17 gives roughly 18-20 grams of coffee for a standard 300g mug
- Using far too little coffee results in weak, watery brews, while too much makes it overpoweringly intense
- Water straight off a rolling boil scorches grounds and pulls out acrid, bitter compounds
- Waiting about 30 seconds lets water drop into the ideal brewing pocket
- Water does not need to be lukewarm; it just needs to settle slightly off the boil
- Fine grinds extract quickly because water touches more surface area
- Coarse grinds extract slowly and need several minutes of steep time
- Mismatches ruin flavor: fine grounds in a long steep turn bitter; coarse grounds in a quick brew taste weak and sour
- Coffee is over 98% water, so bad-tasting water directly makes bad-tasting coffee
- Chlorine in tap water imparts chemical, medicinal off-tastes to brewed coffee
- Heavy minerals in overly hard water mask bright, sweet coffee notes and flatten flavor
- Water straight off a rolling boil (212°F/100°C) scorches grounds and pulls out acrid, bitter compounds
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.
What happens when you fill one scoop with fluffy dark roast beans instead of heavy light roast beans?
Get it right to open this lesson and 11 more in the app.
Where Brewing Better Coffee takes you
- 1
Nailing the Daily Cup
- Three Knobs to Turn: Ratio, Water, and Grind
- Troubleshooting Flavor: Sour vs. Bitter
- 2
Beans and Gear That Match Your Taste
- Decoding the Coffee Bag
- Choosing Your Brew Style
2 sections · 4 units · 12 levels. Built to play, not to enroll.
You pick the voice
Brewing Better Coffee 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.
More Food & Drink on Tomo
Brewing Better Coffee
Transform your daily routine by understanding the simple levers behind every brew. Learn how to fix sour or bitter cups, adjust your grind, and buy beans you actually enjoy.
Brewing Better Coffee at Home
Stop settling for bitter or watery coffee. Learn the simple variables that turn a morning routine into a professional-quality cup using the gear you already own.
How Coffee Gets Its Flavor
Go beyond the morning caffeine jolt. Learn to brew a better cup at home, identify complex tasting notes, and choose the perfect beans for your palate.
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.
Better Coffee at Home
Transform your daily coffee from bitter guesswork into a deliberate, delicious ritual. Learn to diagnose bad brews, balance flavors, and choose beans you will actually love.
Better Daily Coffee
Fix watery, bitter, or sour brews with a few simple kitchen adjustments. Learn to dial in your extraction and buy beans that match your taste.
Start Brewing Better Coffee today.
Download Tomo, search Brewing Better Coffee, and play your first lesson in under a minute.