Advanced Espresso Extraction
Move beyond the basic double shot. Master the variables of flow, pressure, and chemistry to achieve professional-grade extraction and flavor clarity.
Like Duolingo, but for Advanced Espresso Extraction. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
24 levels across 3 sections, about 48 minutes end to end, roughly 10 days at five minutes a day. It moves through Precision Mechanics, Sensory Analysis and Calibration, and The Physics of the Shot.
Free forever · No credit card · iPhone & Android
Key ideas in Advanced Espresso Extraction
- Static electricity causes ground coffee to cling to the grinder's internal chute and burrs
- A microscopic amount of moisture (RDT) neutralizes static charges to ensure 1:1 input-to-output retention
- High-extraction baskets have higher flow rates that aggressively exploit any density inconsistencies
- WDT breaks up clumps and homogenizes the coffee bed to prevent micro-channeling in high-flow environments
- The practical benefit of RDT in maintaining dose consistency
- The necessity of WDT when using high-flow precision baskets
- Water follows the path of least resistance, which is created by a slanted or 'canted' puck surface
- Once the air is compressed out of the puck, additional tamping pressure does not further increase resistance, whereas a level surface is critical for uniform flow
- Visible 'spurters' indicate high-velocity water breaking through weak points in the puck
- Prioritizing bed levelness over raw tamping force
- The visual symmetry of the cone formation reflects the uniformity of the internal puck density
- Puck screens act as a secondary dispersion block
- The metal mass of the screen provides thermal stability
- Using a bottomless portafilter to diagnose specific puck prep failures
- Screens keep the group head cleaner
- The dual thermal and hydraulic benefits of using a puck screen
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 Advanced Espresso Extraction 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 primary goal of using the Ross Droplet Technique (RDT) before grinding?
Get it right to open this lesson and 23 more in the app.
How to learn Advanced Espresso Extraction, step by step
Go in order. 24 short levels across 3 sections, about 48 minutes in all, five minutes a day.
- 1
Precision Mechanics
- Advanced Puck Preparation
- Flow Control and Pressure Profiling
- Thermal Management and Stability
- 2
Sensory Analysis and Calibration
- Dialing in by Flavor Profile
- Measuring Success with Refractometry
- 3
The Physics of the Shot
- Water Chemistry for Extraction
- Basket Geometry and Precision Filters
- Roast Science and Degassing
3 sections · 8 units · 24 levels. Built to play, not to enroll.
Questions about Advanced Espresso Extraction
How do I learn Advanced Espresso Extraction?
Go in order: start with Precision Mechanics, then Sensory Analysis and Calibration, then The Physics of the Shot. On Tomo that's 24 short levels, about 48 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 Advanced Espresso Extraction?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Advanced Espresso Extraction is one of its free courses, and you can type any other topic to get a course of your own.
Is the Advanced Espresso Extraction course free?
Yes. Advanced Espresso Extraction 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 Advanced Espresso Extraction?
24 levels across 3 sections, about 48 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 Advanced Espresso Extraction?
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
Advanced Espresso Extraction 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 Advanced Espresso Extraction today.
Download Tomo, search Advanced Espresso Extraction, and play your first lesson in under a minute.