Washed, natural
& honey
The single most underappreciated link in the chain. How the fruit is removed from the seed — all of it, none of it, or some of it — can change a coffee more than where it grew.
The fork in the road
Every green bean has to be separated from its fruit and dried. The amount of sweet fruit left touching the seed while it dries is the entire basis of the three processing styles.
How to taste the difference
Once you know the process, you can predict the cup. A washed coffee will taste cleaner and brighter, its acidity and origin naked. A natural will taste heavier and fruitier, sometimes wild or boozy — the fruit is "added." A honey sits between. This is why the process word on the bag is one of the most predictive things printed on it.
Before you taste, read the process and form a hypothesis. Then taste and check it. A few dozen reps and you’ll read "natural" and taste the jam before the cup reaches your lips.
Washed vs natural, side by side
Get the pair
Ideally the same origin processed two ways; failing that, any clearly-labelled washed coffee and any natural.
Brew identically
Same grind, ratio, water, method — so the only variable is the process.
Name the gap
The natural should read heavier and fruitier, the washed cleaner and brighter. Log both on the instrument from Session 1.
Questions
Flashcards
Lock it in
From memory:
- State the one question that defines the three processes.
- Predict the cup for washed vs natural.
- Where does honey sit, and why?
- Why can processing beat origin?
- What is anaerobic/experimental processing?
The roast
spectrum
Roasting turns grassy green beans into coffee — and it is the most visible, most over-credited link in the chain. Learn what heat actually does, and where origin gives way to roast.
What roasting does
Raw green coffee is grassy and undrinkable. Heat drives off moisture and triggers browning reactions that build hundreds of new aromas — and how far you take it is a series of named landmarks.
The spectrum
Click up the spectrum from light to dark. Notice the trade: acidity and origin character fall as body and roast flavor rise.
Feel the trade-off
Brew light vs dark
Same method for both. The light should be brighter and more acidic; the dark heavier, more bittersweet, less distinct by origin.
Look for the oils
Check the beans: a dark roast often has oil on the surface (into second crack); a light roast is dry. Surface oil is a roast-level tell.
Ask what’s hidden
In the dark roast, can you still tell where it’s from? Usually not — that’s roast burying origin.
Questions
Flashcards
Lock it in
From memory:
- Why is green coffee undrinkable?
- What happens at first crack? At second?
- What is "development" and why does it matter?
- State the light-vs-dark trade-off.
- Why are cheap beans often roasted dark?
Reading
a roast
Roast level is not the same as roast quality. A coffee can be the "right" color and still be badly roasted. This session teaches the defects — and why roast color tells you less than you think.
The roast defects
Beginners judge roast by color. But the most common roast faults hide inside a normal-looking bean. Learn to taste them:
You can now separate three causes of a "bad" coffee that beginners lump together: a green/processing defect (Sessions 3–4), a roast defect (this session), and — coming next in the brewing block — an extraction fault. Same bitter cup, three very different fixes.
Interrogate a cup
Taste for underdevelopment
Sharp sourness, grassy or peanut notes, a quick harsh finish? Suspect an underdeveloped (or too-light, rushed) roast — not just "acidic."
Taste for over-roast
Ash, char, flat bitterness, oily beans? That’s the roast, not the bean or your brewing.
Check the date, not just the color
Find the roast date. Freshness (Session 13) explains as many dull cups as roast level does.
Questions
Flashcards
Lock it in
From memory:
- Describe an underdeveloped roast’s taste.
- How does a baked roast taste, and why?
- What does roast color tell you — and not tell you?
- Name the three different causes of a bitter cup.
- Why check roast date over roast color?