Typica — The Original

Typica is the Adam of Arabica. It spread from Ethiopia to Yemen, hitched a ride with Dutch traders to Java, and arrived in the Americas in the early 1700s. Almost every Arabica variety grown in Latin America traces back to it. The plant is tall, low-yielding, and disease-prone — everything a modern farmer doesn’t want. But when it’s good, it’s transcendent: clean acidity, refined sweetness, a silky body that feels like it was filtered through velvet.

Why you should care: Typica is the benchmark. When you taste a Typica at its best, you’re tasting what Arabica wants to be. It’s balanced, elegant, and increasingly rare. If you find a bag labelled “Typica” from a high-altitude farm in Peru or Guatemala, buy it. You’re drinking history.

Bourbon — The Sweet Upgrade

Bourbon is what happens when Typica mutates in exactly the right direction. Named after Bourbon Island (now Réunion), where French missionaries grew it in the 1700s, Bourbon produces more cherries than Typica and a sweeter, rounder cup. Think caramel, red fruit, and acidity that’s present but never aggressive. It’s the backbone of Central America’s specialty coffee reputation.

Bourbon also gave us a family of mutants that reshaped the industry. Caturra (discovered in Brazil in the 1930s) is a dwarf Bourbon — compact enough to plant densely, bright in the cup, with a citric snap that makes it a Colombian favourite. Pacas is El Salvador’s answer to Caturra: balanced, sweet, dependable. Villa Sarchi, from Costa Rica, is the elegant one — floral and silky, often described as a dialled-down Geisha.

Why you should care: Bourbon and its mutants are responsible for most of the great washed Central American coffees you’ve ever loved. If a bag says “Bourbon” or “Caturra,” you’re in safe hands — expect sweetness, balance, and clarity.

SL28 — Kenya’s Blackcurrant Bomb

In the 1930s, the Scott Agricultural Laboratories in Kenya went looking for coffee plants that could survive drought, neglect, and disease. They found one growing in Tanganyika, selected it, and called it SL28. It’s tough. It thrives on minimal inputs. And it produces some of the most explosive flavour in coffee.

SL28’s cup profile is unmistakable: piercing acidity, intense sweetness, and a flavour that cracks through as blackcurrant, tomato, and wine — bright enough to make your jaw tighten. It powers 70–80% of Kenya’s coffee trees, and attempts to grow it elsewhere have never replicated the same magic. SL28 is uniquely, defiantly Kenyan.

Why you should care: If you’ve ever had a Kenyan coffee that tasted like blackcurrant jam on a summer afternoon, you were drinking SL28 (or its cousin SL34, which brings a heavier, more savoury body). It’s one of the few varieties that defines an entire origin. Kenya is SL28.

Geisha — The $10,000/Lb Legend

No variety has reshaped specialty coffee like Geisha. It started as a windbreak. Seriously. The Petersons of Hacienda La Esmeralda in Panama planted Geisha trees around their farm for shade — until they entered it in the 2004 Best of Panama competition and blew everyone’s minds.

Today, Panamanian Geisha commands prices that make other coffees look like instant: hundreds of dollars per pound at auction, with single lots breaking $10,000. The cup is unmistakable — jasmine, bergamot, lychee, tropical fruit, and a body so delicate it’s closer to tea than coffee. Grown at 1,500–2,000 metres in Panama’s Boquete and Volcán regions, it’s also cultivated in Colombia, Costa Rica, and Ethiopia — but Panamanian Geisha remains the benchmark.

Why you should care: Geisha proved that variety alone can define a coffee’s entire identity. It’s the unicorn, the proof that genetics can produce flavours nobody thought coffee was capable of. You probably won’t drink it every day (your wallet will object), but you owe it to yourself to try it once. It’ll recalibrate what you think coffee can be.

Pacamara — Huge Bean, Huge Flavour

Pacamara is the result of crossing Pacas (Bourbon mutant) with Maragogype (Typica mutant with enormous beans). The result: the largest beans of any commercial Arabica variety, and a flavour that’s equally oversized. Think juicy stone fruit, floral notes, creamy body — and an intensity that swings wildly between brilliant and chaotic depending on how the farm treats it.

Pacamara is a competition favourite because when it hits, it hits hard. When it misses, it tastes muddled. There’s no middle ground.

Why you should care: Pacamara is the high-variance drama queen of coffee varieties. At its best, it’s unforgettable. At its worst, it’s interesting. Either way, it’s never boring — and in coffee, that’s a rare and valuable thing.

Ethiopian Heirloom — 800+ Varieties in a Single Bag

Here’s a humbling truth: most of the coffee grown in Ethiopia — the birthplace of Arabica — is made up of uncatalogued, unnamed landraces. There are thousands of them, growing wild in forests and smallholder plots, and nobody has given them official names. So the industry wraps them all up under the label “Ethiopian Heirloom” — a humble confession that we don’t actually know what we’re drinking.

But that diversity is the secret sauce. That’s why Ethiopian coffees have the widest flavour spectrum of any origin: a natural-processed Guji tastes like blueberry pie; a washed Yirgacheffe tastes like jasmine and lemon tea. They come from the same country but different heirloom populations. One bag might contain fifty distinct varieties. The Jimma Agricultural Research Centre has isolated a few selections — JARC 74110, 74112, 74158 — which are prized for intense floral and citrus qualities, but the vast majority remain anonymous.

Why you should care: “Heirloom” is the most exciting label in coffee because it means you’re tasting raw, unfiltered genetic diversity. Every cup is a lottery, and the prizes are extraordinary. If you love Ethiopian coffee, you love Heirloom — whether you knew it or not.

Why Variety Matters

Genetics sets the ceiling. Terroir and processing determine how close you get to it, but the variety itself decides what’s possible. A Geisha will never taste like an SL28. A Castillo will never taste like a Pacamara. That’s not a flaw — it’s the whole point.

Learning varieties is like learning wine grapes: once you know that SL28 means blackcurrant and Geisha means jasmine, you can walk into any café or browse any roaster’s online shop and order with genuine confidence. You’re not guessing anymore. You’re choosing.

Variety matters as much as origin — it’s the difference between a coffee tasting like grapefruit vs chocolate.

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