Mixology and Specialty Coffee
Bridge the worlds of specialty coffee and craft cocktails through extraction thermodynamics, botanical terroir, and sensory science. Designed for experienced practitioners seeking technical rigor and refined service choreography.
Like Duolingo, but for Mixology and Specialty Coffee. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
22 levels across 4 sections, about 44 minutes end to end, roughly 9 days at five minutes a day. It moves through Calibrating the Palate and Extraction Physics; Origins, Varietals, and Fermentation Chemistry; Precision Tooling and Advanced Mechanics; and Service Choreography, Ritual, and Menu Architecture.
Free forever · No credit card · iPhone & Android

Key ideas in Mixology and Specialty Coffee
- Refractometers quantify dissolved solids by measuring the bending of light through filtered liquid, exposing differences that scales cannot detect
- Extraction Yield is calculated as (Beverage Mass × TDS%) / Dry Dose Mass, decoupling dissolved solids from liquid output weight
- Identical volumetric or gravimetric yields can mask channeling, where bypassing water inflates mass without extracting soluble compounds
- Volatile aromatic compounds like monoterpenes and aldehydes flash off exponentially above ~70°C, making rapid cooling protective of delicate floral/fruit notes in hot extractions
- Violent aeration during shaking introduces ambient oxygen that rapidly oxidizes delicate high-volatility botanicals and strips them through headspace venting
- Stirring limits oxygen incorporation and preserves delicate aromatic compounds compared to the high surface-area exposure of vigorous shaking
- In high-proof solutions, ethanol acts as an amphiphilic solvent that clusters around hydrophobic aroma compounds (esters, lactones), trapping them in the liquid
- Adding water shifts the thermodynamic equilibrium, reducing ethanol's capacity to solvate non-polar aroma molecules and driving them up into the glass headspace
- Chilling suppresses overall volatility, but controlled dilution provides the chemical driving force needed to liberate trapped hydrophobic congeners
- Titratable acidity (total available hydrogen ions ready to neutralize bases) dictates perceived sourness and balance against sugars far more than pH (free hydrogen ion concentration)
- Perceived sweetness is a dynamic balance against total acid load; keeping syrup constant while lowering titratable acid makes a drink taste significantly sweeter
- Gum arabic adds long-chain arabinogalactan polysaccharides that coat the palate and increase rheological drag without increasing glycemic sweetness
- Sodium ions (0.2–0.5% saline) competitively bind to TAS2R bitter receptors, decreasing bitterness perception and boosting perceived roundness without adding sweet mass
- Crema provides temporary tactile body via a multiphase colloidal foam of suspended lipids and trapped CO2 microbubbles, independently of soluble solids
- Trigeminal sensations transmit chemical and thermal irritation (capsaicin, ethanol heat, carbonation, astringency) via somatosensory nerves rather than taste buds or olfactory receptors
- Astringency in over-extracted coffee or barrel-aged spirits is a tactile friction caused by polyphenols coagulating lubricating salivary proline-rich proteins, not a basic taste like bitterness
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 Mixology and Specialty 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 pull a 36g espresso from an 18g dose, and your refractometer reads 10.0% TDS. How do you calculate your extraction yield?
Get it right to open this lesson and 21 more in the app.
How to learn Mixology and Specialty Coffee, step by step
Go in order. 22 short levels across 4 sections, about 44 minutes in all, five minutes a day.
- 1
Calibrating the Palate and Extraction Physics
- Thermodynamic Calibration and Dilution Curves
- Sensory Lexicons and Comparative Evaluation
- 2
Origins, Varietals, and Fermentation Chemistry
- Botanical Lineage and Cultivar Chemistry
- 3
Precision Tooling and Advanced Mechanics
- Extraction Hydraulics and Separation Techniques
- Vessel Physics, Ice Morphology, and Dispense Tools
- 4
Service Choreography, Ritual, and Menu Architecture
- Temporal Service and Course Sequencing
- Menu Engineering and Multi-Sensory Presentation
4 sections · 7 units · 22 levels. Built to play, not to enroll.
Questions about Mixology and Specialty Coffee
How do I learn Mixology and Specialty Coffee?
Go in order: start with Calibrating the Palate and Extraction Physics, then Origins, Varietals, and Fermentation Chemistry, then Precision Tooling and Advanced Mechanics, then Service Choreography, Ritual, and Menu Architecture. On Tomo that's 22 short levels, about 44 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 Mixology and Specialty Coffee?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Mixology and Specialty Coffee is one of its free courses, and you can type any other topic to get a course of your own.
Is the Mixology and Specialty Coffee course free?
Yes. Mixology and Specialty 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 Mixology and Specialty Coffee?
22 levels across 4 sections, about 44 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 Mixology and Specialty Coffee?
No. It's pitched at an advanced 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
Mixology and Specialty Coffee 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.
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Start Mixology and Specialty Coffee today.
Download Tomo, search Mixology and Specialty Coffee, and play your first lesson in under a minute.