Two species, two different worlds

Coffee, as a beverage, comes from 2 main species: Coffea arabica and Coffea canephora (popularly known as Robusta). Liberica and Excelsa exist too, but represent under 1% of world production. The remaining 99% splits 60% Arabica, 40% Robusta.

Genetic differences

Arabica has 44 chromosomes, Robusta has 22. That means Arabica is more genetically complex, more diverse in varieties (Bourbon, Typica, Geisha, Heirloom, etc.) — and more sensitive to disease, climate, and soil.

Robusta is genetically simpler, hardier, easier to cultivate. That's why it's cheaper.

Differences in the cup

Arabica

  • Lively, complex acidity
  • Notes: fruit, flowers, chocolate, caramel, citrus
  • Velvety, sweet body
  • Caffeine: 1.2-1.5%
  • Natural sugar: 6-9%

Robusta

  • Low acidity, flat profile
  • Notes: rubber, burnt wood, grain
  • Very full, creamy body
  • Caffeine: 2.2-2.7% (2x that of Arabica!)
  • Natural sugar: 3-5%

Where it grows

Arabica

High altitudes (1,000-2,200m), cool climate, volcanic soil. Main countries: Brazil, Colombia, Ethiopia, Honduras, Guatemala, Peru, Tanzania.

Robusta

Low altitudes (under 800m), warm humid tropical climate, varied soils. Main countries: Vietnam (#1 worldwide!), Brazil (#2), Indonesia, India, Uganda.

Why Robusta appears in blends

Robusta shows up mostly in 2 contexts:

1. Traditional Italian espresso

Italians put 10-30% Robusta in blends for:

  • Richer, more persistent crema
  • Fuller body
  • More caffeine
  • Cheaper price

2. Instant and commercial coffee

90% of instant coffee is Robusta. In Romania, many supermarket coffees are Arabica/Robusta blends or pure Robusta.

Why specialty coffee is 99% Arabica

Because specialty is defined by aromatic complexity — something Robusta can't deliver. Robusta doesn't produce the floral, fruity, sweet notes that make specialty special.

Exception: Fine Robusta — high-quality Robusta coffees, grown at unusual altitudes (1,300-1,500m), carefully processed. It's been appearing for 5-10 years in experimental specialty, but stays niche.

Myths

“Arabica is always better”

Almost true — but a high-quality Robusta (Fine Robusta) beats a low-quality Arabica.

“Robusta has more caffeine, so it's stronger”

Yes, but “strong” in the sense of impact, not flavor. Aromatically, Robusta is far poorer.

“Good espresso must have thick crema”

Classic myth. Thick crema comes mainly from Robusta. A 100% Arabica specialty espresso has thinner crema but a far more complex flavor.

What you're drinking

All Incognito coffees are 100% Arabica, single-origin, specialty grade 80+. Here's what to choose:

  • Brazil — sweet classic Arabica, perfect to start with
  • Honduras — balanced Arabica, citrus + chocolate
  • Tanzania — vibrant, complex Arabica
  • Peru — organic, sweet Arabica
  • Indonesia Java — full-bodied Arabica, distinctive

Specialty coffee = high-quality Arabica. That's the rule. The exceptions are rare and deserve the “Fine Robusta” label to avoid confusion.