Processing is one of the least understood but most important steps in coffee production. It is the stage between harvest and green bean — and the choices made at this stage have a profound effect on what ends up in the cup. In Yemen, there is no choice to make. Coffee has been processed the same way for centuries: naturally, slowly and by hand, on rooftops.
This article explains how Yemeni coffee is processed, why rooftop drying produces the flavour profile it does and what that means for you as someone buying or brewing Yemeni coffee. For the wider context on what makes Yemeni coffee unique, read The Complete Guide to Yemeni Coffee: History, Regions and What Makes It Unique.
How is Yemeni coffee processed?
Yemeni coffee is naturally processed. This means the whole coffee cherry — fruit skin, pulp and all — is dried intact, with the bean inside, before anything is extracted.
After harvest, ripe cherries are spread across flat stone rooftops on highland village houses. There they remain for several weeks, drying slowly in the mountain sun. No machinery is involved. No running water. No depulping equipment. What is required instead is time, attention and the warm, dry air of Yemen’s highland valleys.
As the cherries dry, they are turned by hand to ensure even drying and prevent mould. Colour shifts from bright red through deep burgundy to a dark, leathery brown as the moisture content falls. When fully dried, the husks are milled away — by hand or by simple mechanical milling — to reveal the green bean ready for sorting and export.
This is the same process that produced the Mocha coffee traded through the Port of al-Maka five hundred years ago.
What is natural processing and how does it differ from washed processing?
Natural and washed processing represent two fundamentally different approaches to post-harvest coffee treatment.
In natural processing, the whole cherry is dried with the bean inside. The bean spends weeks in contact with the fermenting fruit, absorbing sugars and flavour compounds from the surrounding pulp. The result is a coffee with deep sweetness, heavy body and pronounced dried fruit character.
In washed processing — the dominant method in many producing countries, including much of Ethiopia and Central America — the fruit is stripped from the bean using water and mechanical depulpers before drying. This removes the fruit’s influence almost entirely, producing coffees that are cleaner, brighter and often more acidic — but with less body and fewer of the complex dried fruit notes associated with natural process lots.
Yemen uses natural processing exclusively. It always has. The distinction matters enormously in the cup.
Why does rooftop drying affect flavour so significantly?
Rooftop drying affects flavour because the extended contact between bean and drying fruit allows compounds to transfer. As the cherry ferments and breaks down around the seed, fruit sugars and fermentation by-products migrate into the bean itself. The longer and more gradual this process, the more pronounced the effect.
In Yemen, at altitude, in highland air, this drying process can take three to six weeks. The slow, sun-driven fermentation produces beans with exceptional sweetness, a wine-like body and a flavour depth that no faster, more controlled processing method achieves.
The specific notes most commonly associated with Yemeni coffee — dried cherry, fig, dark chocolate, tamarind and prune — are largely products of this extended rooftop drying. These are not tasting notes applied after the fact. They are the direct result of what happens chemically during weeks of slow natural fermentation on stone rooftops at 2,000 metres.
As Ameen, founder of Hamdan Coffee, has said:
“We try to focus not only on different regions, but from a traditional lens — a historical lens. The origin method, the origin of making. We try to make the coffee simple as it is. Too much syrups, too much flavours — the source of coffee is to be what it is.”
— Ameen, Founder, Hamdan Coffee
Is traditional rooftop drying still used in Yemen today?
Yes — and not as a heritage affectation. Rooftop drying is the standard processing method across Yemen’s highland coffee farms because it is the only method available in regions with no access to mechanical processing infrastructure.
Flat stone rooftops on highland homes become drying beds during harvest season — which typically runs from October through January. Farming families manage the drying themselves, turning cherries by hand and monitoring conditions day by day across several weeks.
The method is unchanged from what it was five centuries ago. The same families, on the same hillsides, using the same technique, producing coffee with the same character that made Yemeni coffee famous before any other origin had been planted.
What flavour notes should I expect from naturally processed Yemeni coffee?
Expect depth before brightness.
Naturally processed Yemeni coffees typically produce cups with deep dried fruit character — dark cherry, fig, raisin and prune are all common. These sit alongside dark chocolate, tamarind and sometimes a subtle wine-like fermentation note that adds complexity rather than sourness when the processing has been done well. The body is thick and syrupy. Acidity is low to medium. The finish is long.
These are not coffees that reveal everything in a single sip. They reward slow, attentive brewing and a willingness to sit with complexity. For first-time tasters, the most striking thing is often how little a well-prepared Yemeni coffee resembles the bright, citrus-forward profiles common in East African specialty coffee — even though Ethiopia and Yemen share the same botanical origin.
What is qishr and how does it relate to Yemeni coffee processing?
Qishr is a traditional Yemeni drink made from the dried outer husks of the coffee cherry — the part removed after natural drying, typically discarded by producers elsewhere in the world.
In Yemen, these husks are dried, sometimes spiced with ginger and cardamom and brewed into a warming, aromatic drink that sits somewhere between tea and coffee. It is naturally very low in caffeine. It is one of the oldest surviving forms of coffee consumption in the world and reflects a practical Yemeni attitude to the coffee plant: nothing is wasted.
Hamdan Coffee stocks their own version — a cáscara that Ameen describes as one of their best sellers, valued for its deeply relaxing character and the way it sits in the tradition of qishr as a social, evening drink quite different from the caffeinated intensity of their highland specialty beans.
How does traditional processing connect to the philosophy of Hamdan Coffee?
For Hamdan Coffee, traditional processing is not a selling feature — it is a philosophy.
The commitment is to Yemeni coffee as it is: unmodified, unembellished and presented honestly. The rooftop drying that shapes every bean Hamdan Coffee sources is consistent with a broader approach that values authenticity over novelty and origin integrity over commercial convenience. The decision to stock cáscara — the dried husk by-product of natural processing — reflects the same thinking. Yemeni coffee culture uses every part of the plant. Hamdan Coffee follows suit.
Explore Yemeni Coffee Further
Shop Hamdan Coffee’s traceable Yemeni single origins
Last updated: March 2026
