Coffee processing is how we get from fruit to bean. It's the step that removes the layers of the coffee cherry after harvest, and it plays a huge role in how your coffee ends up tasting in the cup.
If you've browsed our range, you'll have seen processing listed alongside origin, variety, and tasting notes. That's not just for show. It's one of the clearest clues to what you're about to taste.
Think of it like cooking. Same ingredients, different method, completely different result.
Why processing matters
Processing shapes flavour. Big time. It influences sweetness, acidity, body, and how clean or complex a coffee feels.
The same coffee, from the same farm, can taste wildly different depending on how it's processed. Bright and citrusy in one version. Jammy and full-bodied in another.
It's one of the reasons coffee stays interesting. There's no single "right" answer, just different expressions of the same raw material.
The anatomy of a coffee cherry
Before we get into methods, it helps to know what's being worked on. A coffee cherry is made up of several layers:
- Skin: the outer layer
- Pulp: the fleshy fruit
- Mucilage: a sticky, sugar-rich layer
- Parchment: a protective shell
- Silverskin: a thin layer clinging to the bean
- Bean: the seed we roast and brew
Processing is all about how and when these layers are removed, and how much of the fruit gets involved along the way.
The main processing methods
There are plenty of variations out there, but most coffees you'll come across fall into a few key camps:
- Washed (wet): fruit removed early; clean, bright, structured
- Natural (dry): cherry dried whole; bold, fruity, full-bodied
- Honey / pulped natural: some fruit left on; sweet, smooth, rounded
- Experimental: controlled fermentations and newer techniques; often expressive and distinctive
Whatever the route, they all end in the same place: the bean dried down to a stable 10 to 12 percent moisture, ready to rest, ship and roast. What changes is how much fruit stays in contact with the bean on the way there, and that contact is a big part of what you taste.
Washed process
Washed coffees are all about clarity.
- How it works: The skin and pulp are removed first. The beans, still coated in mucilage, are then fermented (sometimes in water, sometimes without) to break that layer down before being washed clean and dried.
- Why it matters: With less fruit involved during drying, the result is typically bright, clean, and well-defined. You're tasting more of the coffee itself, with less influence from the surrounding fruit.
Common in: Ethiopia, Colombia, Kenya
Sustainability note: Water use can be high, though many producers are improving recycling and treatment systems.
Read our deeper dive on washed processing here, or explore our current range of washed coffees.
Honey / pulped natural process
This one sits comfortably between washed and natural.
- How it works: The cherry is depulped, but instead of fully washing the beans, some mucilage is left on during drying.
- Why it matters: Those remaining sugars influence flavour as the coffee dries, adding sweetness, body, and a softer, rounder profile.
You might see different "honey" levels, white, yellow, red and black, which track how much mucilage is left on the bean and how much sun it gets while drying. As a rough rule, more mucilage and more shade means a darker honey and a bigger, sweeter cup.
Common in: Brazil, Costa Rica
Worth noting: Getting this right takes precision. Too much moisture or uneven drying can quickly lead to off flavours.
Read our deeper dive on honey processing here, or explore our range of honey and pulped natural coffees.
Natural process
The oldest method, and often the boldest in the cup.
- How it works: The whole cherry is dried intact before the dried fruit is removed.
- Why it matters: With the bean sitting inside the fruit for the entire drying period, you get more body, more sweetness, and more fruit-driven flavours.
Expect notes like berries, chocolate, and sometimes something a little wilder depending on how it's been handled.
Common in: Ethiopia, Brazil, Yemen
Pro tip: Naturals can divide opinion. If you like fruit-forward coffees, they're well worth exploring.
Read our deeper dive on natural processing here, or browse our naturally processed coffees.
Experimental and emerging processes
This is where things get interesting.
Producers are increasingly treating fermentation as a tool they can shape, rather than just manage. The goal is simple: unlock new flavours, more consistency, or both. Most of these methods are really twists on the classic three, with the fermentation step controlled far more tightly.
- Anaerobic fermentation: Coffee is fermented in a sealed, low-oxygen environment, often producing more intense, layered flavours. Read more here.
- Carbonic maceration: Whole cherries are fermented in CO2-rich tanks, leading to bright, aromatic, fruit-forward profiles. Read more here.
- Lactic fermentation: Encourages lactic acid bacteria that can create creamy textures and softer, rounder acidity.
- Mosto: The fermentation liquid from one batch is used to kickstart the next, a bit like a sourdough starter for coffee, layering in extra fruit and complexity. Read more here.
These methods are still evolving, and results can vary. When they land well, though, they can be some of the most memorable coffees out there.
A global perspective
Processing methods often reflect local conditions as much as preference.
- Ethiopia: Known for both washed and natural coffees, often dried on raised beds
- Brazil: Large-scale production, with a focus on naturals and pulped naturals
- Indonesia: Home to wet hulling (Giling Basah, literally "wet grinding"), where the parchment is stripped off while the bean is still damp. It dries fast in a humid climate and gives those heavier, earthy, low-acid profiles
Where to start
The best way to understand processing is to taste it.
- Try this: The same origin, two different processes. It's one of the clearest ways to see the impact side by side.
- Brew tip: Washed coffees tend to shine in pour-over. Naturals and honeys can be great in immersion methods like French press or AeroPress.
Browse our current coffees, or dive deeper into our Coffee Processing Explained series.
Got questions?
If you want to dig deeper, we've got plenty more guides linked above. Or just get in touch, we're always up for a coffee chat.