Espresso by Taste and Roast
Learn to dial in delicious espresso using your own palate instead of rigid rules. Discover how to taste the difference between sour and bitter, then adapt your brew recipe for dark, medium, and light roasts.
Like Duolingo, but for Espresso by Taste and Roast. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A short one: 11 levels across 2 sections, about 22 minutes end to end, roughly 4 days at five minutes a day. It moves through Taste First, Tweak Second and Taming the Roast Spectrum. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in Espresso by Taste and Roast
- Espresso extracts acids and sharp sour notes first
- Sugars extract mid-shot to create balanced sweetness
- Heavy bitter and astringent compounds wash out last
- A standard beginner baseline espresso ratio is 1:2 (coffee dose to liquid yield)
- Dosing 18 grams of dry coffee yields roughly 36 grams of liquid espresso in the cup
- The 1:2 ratio balances heavy body with clear flavor separation
- Espresso naturally separates into dense, bitter crema on top and sweeter, syrupy liquid underneath
- Taking a sip without stirring means your first impression is dominated by bitter foam
- Stirring integrates the distinct layers into a single cohesive sip
- Sourness triggers immediate mouth-watering salivation and a puckering feel along tongue edges
- Bitterness creates a lingering, drying astringency toward the back of the throat
- Recognizing tongue and throat sensations tells you whether a shot pulled too fast or too slow
- Sourness in espresso comes out first and signals under-extraction
- Letting more water brew through the coffee puck extracts sweet sugars to balance the sharp acids
- Ending a shot too early cuts off the extraction before sugars can dissolve
- A harsh, drying bitterness indicates too much material was extracted from the coffee puck
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 Espresso by Taste and Roast 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 starts to dissolve during the middle part of an espresso pull?
Get it right to open this lesson and 10 more in the app.
How to learn Espresso by Taste and Roast, step by step
Go in order. 11 short levels across 2 sections, about 22 minutes in all, five minutes a day.
- 1
Taste First, Tweak Second
- Tasting Your First Shot
- Diagnosing and Fixing Extraction
- 2
Taming the Roast Spectrum
- Brewing Dark and Medium Roasts
- Unlocking Sweetness in Light Roasts
2 sections · 4 units · 11 levels. Built to play, not to enroll.
Questions about Espresso by Taste and Roast
How do I learn Espresso by Taste and Roast?
Go in order: start with Taste First, Tweak Second, then Taming the Roast Spectrum. On Tomo that's 11 short levels, about 22 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 Espresso by Taste and Roast?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Espresso by Taste and Roast is one of its free courses, and you can type any other topic to get a course of your own.
Is the Espresso by Taste and Roast course free?
Yes. Espresso by Taste and Roast 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 Espresso by Taste and Roast?
11 levels across 2 sections, about 22 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 Espresso by Taste and Roast?
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
Espresso by Taste and Roast is taught in the Professor style: clear, structured, thorough. 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
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The Art of the Espresso Shot
Move beyond the button-press and master the variables that define a perfect extraction. Learn to diagnose flavors, manipulate brew ratios, and maintain professional-grade equipment.
Dialing In Espresso
Move beyond rigid 1:2 recipe templates and learn to diagnose extraction in real time. Master puck prep, decouple grind and yield, and adapt machine parameters to any roast.
Espresso at Home
Unlock the potential of your home espresso setup and pull sweet, balanced shots every morning. Learn how to prepare a clean puck, diagnose sour and bitter notes, and dial in your grinder with confidence.
Mastering the Art of Espresso
Stop settling for mediocre coffee and start pulling cafe-quality shots at home. Learn to dial in flavor, steam silky milk, and master the science of the perfect extraction.
Espresso and Milk Craft
Learn the essential mechanics of pulled espresso and silky steamed milk. Dial in balanced shots, texture microfoam properly, and pour classic cafe drinks with confidence.
Start Espresso by Taste and Roast today.
Download Tomo, search Espresso by Taste and Roast, and play your first lesson in under a minute.