Brewing the Perfect Cup
Stop settling for bitter office coffee and start making cafe-quality drinks at home. Learn the simple tricks to balance flavor and master the most popular recipes from around the world.
Like Duolingo, but for Brewing the Perfect Cup. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A deep dive: 88 levels across 5 sections, about 176 minutes end to end, roughly 35 days at five minutes a day. It moves through Make a Great Cup Right Now, Master Your Favorite Methods, Create Cafe Classics at Home, Shop Like an Expert, and The Science of the Bean. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in Brewing the Perfect Cup
- Coffee beans vary in density based on roast level
- The 1:16 or 1:17 ratio is the industry standard for balance
- Volume measurements like spoons don't account for air gaps between beans
- Ratios are expressed as coffee weight to water weight
- Why weight is superior to volume for consistency
- Recall of the standard Golden Ratio
- Increasing the amount of coffee relative to water increases body/strength
- A lower ratio (e.g., 1:15) creates a more concentrated cup than a higher ratio (e.g., 1:18)
- Divide total water weight by the ratio number to find coffee dose
- 340 divided by 17 equals 20
- Lower ratios result in higher TDS (Total Dissolved Solids)
- Higher ratios dilute the flavor profile
- Calculating coffee dose for a specific output
- The Golden Ratio is a starting point, not a law
- Personal preference for 'strength' justifies moving to a 1:15 or 1:14 ratio
- Adjusting ratio to fix 'thin' or watery coffee
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 the Perfect Cup 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 is the industry standard 'Golden Ratio' for a balanced cup of specialty coffee?
Get it right to open this lesson and 87 more in the app.
How to learn Brewing the Perfect Cup, step by step
Go in order. 88 short levels across 5 sections, about 2 hours 56 minutes in all, five minutes a day.
- 1
Make a Great Cup Right Now
- The Golden Ratio for Water and Coffee
- Fixing a Cup That Tastes Too Sour
- Fixing a Cup That Tastes Too Bitter
- Why Water Temperature Changes Everything
- 2
Master Your Favorite Methods
- The Foolproof French Press
- Clean and Bright Pour-Overs
- Strong and Bold Moka Pot Coffee
- Smooth Cold Brew for Hot Days
- The Quick Magic of the AeroPress
- Using a Standard Drip Machine Like a Pro
- 3
Create Cafe Classics at Home
- Frothing Milk Without Fancy Tools
- The Secret to a Perfect Latte
- Layering a Traditional Macchiato
- 4
Shop Like an Expert
- Reading the Labels on a Coffee Bag
- Light vs. Dark Roasts: Which is for You?
- Why Freshly Ground Beans Matter
- Choosing the Right Grind Size for Your Brewer
- Storing Your Beans to Keep Them Fresh
- 5
The Science of the Bean
- How Heat Changes the Bean During Roasting
- What Happens When Water Hits Coffee
- How Altitude Affects Flavor Profiles
- The Journey from Cherry to Dried Bean
5 sections · 22 units · 88 levels. Built to play, not to enroll.
Questions about Brewing the Perfect Cup
How do I learn Brewing the Perfect Cup?
Go in order: start with Make a Great Cup Right Now, then Master Your Favorite Methods, then Create Cafe Classics at Home, then Shop Like an Expert, and 1 more section after that. On Tomo that's 88 short levels, about 2 hours 56 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 the Perfect Cup?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Brewing the Perfect Cup is one of its free courses, and you can type any other topic to get a course of your own.
Is the Brewing the Perfect Cup course free?
Yes. Brewing the Perfect Cup 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 the Perfect Cup?
88 levels across 5 sections, about 2 hours 56 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 the Perfect Cup?
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 the Perfect Cup 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 the Perfect Cup today.
Download Tomo, search Brewing the Perfect Cup, and play your first lesson in under a minute.