Coffee Roasting at Home
Like Duolingo, but for Coffee Roasting at Home. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
Free forever · No credit card · iPhone & Android

Key ideas in Coffee Roasting at Home
- Raw coffee beans are hard, green seeds
- First Crack is caused by steam escaping the bean
- Green beans have a grassy smell rather than a coffee aroma
- Heat is required to transform the seed's chemical structure into something edible
- The sound of the first crack marks the transition from raw seed to drinkable coffee
- Understanding the raw state of coffee before roasting
- Roasting can be stopped any time after this sound begins
- A heavy skillet provides the necessary heat and space for stirring
- A stovetop popcorn popper uses a crank to keep beans moving for an even roast
- Roasting requires a tool that can reach high heat and allow for constant agitation
- Identifying the sensory cue for a completed roast
- Beans retain internal heat and will continue to cook if left in a pile
- Identifying accessible tools for home roasting
- Freshly roasted coffee contains high levels of carbon dioxide
- Trapped gas can cause a metallic or sour taste if brewed immediately
- Understanding the urgency of cooling beans
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 Coffee Roasting at Home 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 physically happening inside the coffee bean to cause the 'First Crack' sound?
Get it right to open this lesson and 8 more in the app.
Where Coffee Roasting at Home takes you
Transform raw green seeds into aromatic coffee beans using simple kitchen tools. Learn to listen for the 'crack' and see the colors that define your perfect cup.
- 1
Your First Roast
- The Pop and the Color
- Reading the Roast Level
- 2
Controlling the Flavor
- Heat, Time, and Air
2 sections · 3 units · 9 levels. Built to play, not to enroll.
You pick the voice
Coffee Roasting at Home is taught in the 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 Coffee Roasting at Home today.
Download Tomo, search Coffee Roasting at Home, and play your first lesson in under a minute.