Field Notes

Read the coffee journey.

Eleven practical guides on Kilimanjaro origin, coffee processing, roast profiles, cupping, green coffee, brewing and keeping coffee fresh.

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Coffee cherries developing on the tree Close view of unroasted green coffee beans

Coffee guide

Explore from farm to cup.

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Ripe coffee cherries

Origin & process

From cherry to cup

The complete overview: the stages that carry coffee from ripe fruit through processing, roasting and evaluation.

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Coffee growing on the slopes of Mount Kilimanjaro above Moshi

Origin

What altitude does to a coffee bean

Why slower ripening at 1,500–2,000 metres builds a denser bean, and what that does to acidity and sweetness.

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A coffee branch carrying ripe red cherries ready for picking

Process

What “washed” actually means

Pulping, fermentation, washing, drying — and the difference between washed, natural and honey coffee.

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A visit to the Rocky Specialty Coffee roastery in Moshi

Roast guide

Choosing your roast

Light, Medium, Medium-Dark or Dark — what separates them, and one question that usually settles it.

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A cupping session in progress at Rocky Specialty Coffee

Inside the lab

Inside a cupping

Why samples are lined up identically, what tasters score, and how to run a simplified version at home.

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Coffee samples prepared side by side for comparison

Brewing

Grind, ratio, temperature

Three dials, starting numbers for five brewers, and how to fix a cup that came out sour or bitter.

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Stacked coffee sacks in storage at Rocky Specialty Coffee

Coffee care

Keeping coffee fresh in the heat

The four enemies of a roasted bean, why the fridge is the worst place for it, and when freezing works.

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Coffee samples labelled and laid out in the Rocky Coffee sample lab

Coffee care

Reading the bag

Eight or ten facts on a bag. Three of them predict the cup; here is how to tell which.

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Green coffee cherries developing on the tree before the harvest

Origin

When Kilimanjaro coffee is picked

Flowering, ripening, picking and milling — the Kilimanjaro coffee year, and why the month matters.

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A green coffee sample laid out for grading at the sample table

Green coffee

Buying green coffee

Moisture, water activity, screen size, defect count, crop year — the questions to ask before you commit.

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Close view of unroasted green Arabica coffee beans

Origin

What “variety” means on a coffee bag

Species, variety, cultivar — plus the varieties associated with Kilimanjaro, and why peaberry is not one.

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Your questions

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