Ethiopia Guji Anaerobic Natural Coffee

An anaerobic natural from Guji: the cherries are sealed in a tank without oxygen before they are dried, which pushes the fruit toward an intense, jammy sweetness. It is perfumed and loud, closer to a fruit dessert than to a classic cup of coffee.

Origin & Story

Anaerobic processing is one of the newest ideas in coffee. Instead of drying ripe cherries straight away, the producer seals them in a tank with the oxygen removed and lets them ferment for a day or several, often somewhere between 18 and 96 hours. Carbon dioxide builds up inside, and microbes that thrive without oxygen make lactic acid and fruity compounds that end up in the bean.

After the tank the cherries are dried as a natural, on raised beds in Guji, where coffee grows at roughly 1,800 to 2,200 meters in southern Oromia. The trees are Ethiopian heirloom coffee, local landraces that grew up in the forests rather than a single named variety, so every lot has its own character before the fermentation adds more.

The result is unmistakable. Where an ordinary natural tastes of blueberry, an anaerobic one can taste of candy and cooked fruit: strawberry jam, peach and tropical fruit. Some people love that intensity and others find it too far from what they think of as coffee. If you are curious, this is a good cup to taste next to a regular Guji natural, because the difference is easy to hear.

It is also a processing story more than an origin story. The altitude and the heirloom trees give the coffee its base, and the tank decides how loud the fruit gets. A paper filter gives the clearest picture of it.

Reading the Flavor Profile

These values are comparative editorial positions within our own catalog, calibrated so entries can be ranked against each other. They are not laboratory measurements.