What Is Robusta, and Why Does Everyone Sneer at It?

Walk into most speciality coffee shops in Britain and mention Robusta and you will get a face. It is the bean the industry spent twenty years defining itself against — the cheap one, the harsh one, the one in the tin your grandparents kept by the kettle.

Some of that reputation is earned. A good deal of it is snobbery. Here is the honest version.

Two different plants

Almost all coffee comes from one of two species. Coffea arabica is the one speciality coffee is built on: fussy, slow-growing, needs altitude and shade, vulnerable to more or less everything, and capable of remarkable complexity when it all goes right.

Coffea canephora — Robusta — is the other one, and the name is a fair description. It grows at low altitude, tolerates heat, shrugs off leaf rust, and yields far more fruit per plant. It is easier to grow, cheaper to buy and much harder to kill.

Those agricultural facts are the whole story. Robusta is cheap because it is easy to grow, not because it is a lesser thing by nature.

What it actually tastes like, and why

Robusta has more chlorogenic acid and less sugar and fewer lipids than Arabica. In the cup that means more bitterness, more body, less of the fruit and florality that speciality coffee prizes. Words that come up honestly: earthy, woody, rubbery, grainy, savoury. It is a heavier, blunter drink.

If what you want from coffee is delicacy — the blackcurrant note in a washed Kenyan, the jasmine in a Yirgacheffe — Robusta will disappoint you every time, and the people making that face have a point.

If what you want is a cup that tastes like coffee and wakes you up, the calculation is entirely different.

The caffeine

This is the part most people do not know. Robusta carries roughly 2.2 to 2.7% caffeine by weight against Arabica's 1.2 to 1.5% — close to double, sometimes more.

That is not a marketing claim, it is plant chemistry: caffeine is a natural insecticide, and Robusta produces more of it, which is a large part of why the plant is so hardy in the first place. The thing that makes it tough in the field is the thing that makes it strong in the cup.

The bit the snobbery gets wrong

Here is the inconvenient fact for anyone dismissing Robusta outright: traditional Italian espresso has always included it. Not as a cost-cutting measure — though it is cheaper — but because it does something Arabica cannot.

Robusta produces a thicker, more persistent crema. It gives an espresso weight and a lingering finish. And crucially, it survives milk. A delicate single-origin Arabica in a flat white is largely wasted; the nuance you paid for disappears under the dairy. Robusta cuts through.

Plenty of respected Italian roasters still blend 10–30% Robusta into their espresso for exactly these reasons. The British speciality scene, which grew up defining itself against exactly that tradition, tends not to mention it.

So when is Robusta the right choice?

When you want your coffee strong in the ordinary sense of the word — not "complex", not "bright", but strong. When you drink it with milk and want to still taste coffee. When you need the caffeine to do actual work on a Monday morning. And when you find that speciality coffee, for all its virtues, has started to taste a bit like expensive fruit squash.

It is the wrong choice if you brew delicate filter coffee black and want to taste the farm it came from. We sell coffee for that too, and we would rather point you at the right one than sell you the wrong one.

Our Robusta blend

Karhukahvi — bear coffee — is blended with Robusta and we do not apologise for it. It is dark, earthy and frankly bitter, it makes an exceptional filter coffee, and it is strong enough to hold its own in milk. Our product page calls it "for true coffee lovers only", which is only half a joke: it is not a crowd-pleaser and it is not trying to be.

It is also, quietly, our own favourite.

You will find it on our strong coffee page, in whole beans or ground for whatever you brew with. If you would rather try it alongside our gentler blends before committing, Näyte includes a 250g bag of it plus three others, delivered free.

Fair warning on the caffeine, though. One cup of Karhukahvi is not one cup of anything else.