Robusta Coffee

Robusta is Coffea canephora, the second of the two coffee species that supply almost all the world’s coffee. It’s tougher, higher-yielding and more caffeinated than arabica, with a bitter, earthy, full-bodied taste, and it fills most of the world’s instant coffee, many supermarket blends, and it’s the traditional bean for Vietnamese phin coffee.

The short version

• A separate species: Coffea canephora, native to west and central Africa.
• 47.2% of the world’s coffee in 2025/26, the USDA says, and rising.
• About twice the caffeine of arabica, and fewer sugars.
• Bitter, earthy and full-bodied, with low acidity.
• Grown low and hot: typically 200–800 metres, mostly in Vietnam and Brazil.

What is robusta coffee?

Robusta is the common name for the whole species Coffea canephora. Its wild home is the humid understorey of lowland evergreen forests across central and western sub-Saharan Africa, from Guinea to Uganda and Angola, at 50 to 1,500 metres, World Coffee Research says. The plant grows as a tree or shrub to about 10 metres, and its cherries take about 10–11 months to ripen, Wikipedia says.

Unlike arabica, a robusta plant can’t pollinate itself: it needs pollen from a genetically different plant. So farmers plant several clones together, and no robusta field is genetically uniform. The species splits into two broad genetic groups, Guinean and Congolese; the Congolese, with higher rust resistance and medium caffeine, is the more widespread. Conilon, nganda and kouillou are regional names that don’t necessarily match distinct varieties.

Robusta and arabica compared

	Robusta	Arabica
Species	Coffea canephora	Coffea arabica
Native home	West and central Africa	Ethiopia
Usual altitude	200–800 m	1,200–1,500 m
Pollination	Needs another plant	Can pollinate itself
Caffeine	About 2.7%	About 1.5%
Sugars	3–7%	6–9%
Taste	Bitter, earthy, woody, full-bodied, low acidity	Sweeter, more acidic, more fruity
World share, 2025/26	47.2%	52.8%

Sources: World Coffee Research (native range, altitude, pollination); Wikipedia (caffeine, sugars, taste); USDA (share). The altitudes are typical ranges for cultivation, not limits.

Robusta also has higher yields, more soluble solids and fewer problems with pests and disease than arabica, World Coffee Research says. Its extra bitterness and body come partly from pyrazines, aromatic compounds known for their earthiness.

What does robusta taste like?

Bitter, earthy and heavy, with little acidity. Roasted robusta makes a strong, full-bodied coffee with a distinctive earthy flavour and usually more bitterness than arabica, Wikipedia says. Coffee Review’s glossary is blunter: full-bodied but bland, and of inferior cup quality. World Coffee Research is more hopeful: when robusta is handled and processed properly, including careful control of fermentation, it can be sold as specialty coffee.

That heavy body is why some Italian-style espresso blends include a share of robusta, and why it suits strong, sweetened coffee such as Vietnamese phin coffee with condensed milk.

Where is robusta grown?

Country	Robusta, 2025/26
Vietnam	30.5 million bags
Brazil	25.0 million bags
Indonesia	11.0 million bags
Uganda	5.98 million bags
India	4.7 million bags
World	84.39 million bags

Source: USDA, Coffee: World Markets and Trade, July 2026 (60 kg bags). The USDA forecasts 83.8 million bags for 2026/27.

Six countries, Vietnam, Brazil, Indonesia, Uganda, India and Côte d’Ivoire, produce 95% of the world’s robusta, World Coffee Research reports, citing a 2023 study. In Brazil, about 70% of robusta grows in Espírito Santo, the USDA says.

Robusta’s toughness has limits. Recent research suggests its tolerance of heat may have been overstated: temperatures above 20.5 °C can significantly cut yields, World Coffee Research notes, and the plants need a lot of rain.

A short history of robusta

Date	Event
About 1870	First documented cultivation, in Congo
1880	The French record the kouillou type between Gabon and the mouth of the Congo; in Brazil it becomes “conilon”
1895–1897	Named by the botanist Louis Pierre; Froehner publishes the description
1900	The name “robusta” is first used, by Linden
Around 1900	Seeds from Congo reach Java, where farmers adopt them after leaf rust hits arabica
1912	Conilon introduced to Espírito Santo, Brazil
1930–1935	Commercial introductions to Central America via Guatemala
From about 1950	Production expands rapidly, mostly in Brazil and Vietnam

Source: World Coffee Research (History of Robusta and its varieties catalogue). Wikipedia adds that French colonists brought robusta to Vietnam in the late 19th century.

Robusta’s share of world production has risen from about 25% to 40% since the early 1990s, World Coffee Research says, driven by instant coffee and blends, and by its ability to grow where arabica can’t. The USDA’s 2025/26 figure puts it at 47.2%.

Robusta and other coffee guides

• Arabica coffee: the other main species, and how it compares.
• Natural process coffee: drying coffee in the whole fruit.
• Coffee in Vietnam: the world’s biggest robusta grower.
• Vietnamese phin: the classic way to brew it.