ETHIOPIA - GUJI - CARBONIC MACERATION NATURAL

We taste: Watermelon, peach preserves, and stewed berries open the cup, giving way to lilac-forward aromatics and a layered, orange-wine acidity supported by a syrupy, weighty texture.

Producer: small-holder producers, consolidated at Tracon Coffee washing station

Region: Hambela, Guji, Ethiopia

Elevation: 2,150 meters above sea level

Process: Carbonic Maceration Natural Process

Coffee Story

Ethiopia’s coffee landscape is a living network of smallholder producers, each tending a few trees that collectively shape the birthplace of coffee. In regions like Guji, where families harvest and hand-carry cherry to nearby washing stations, quality emerges through community effort. Tracon Coffee—decades-deep in Ethiopia’s trade—helps transform that communal work into world-class specialty lots through cupping labs, farmer support programs, and a modern processing facility in Addis. Their recent experimental projects offer clear proof that Ethiopia’s traditional strengths and modern innovation can coexist without losing a sense of place.

This carbonic-maceration Guji is a standout: a fruit-forward, vividly expressive coffee lifted by the unmistakable florality of southern Ethiopia. Low-oxygen, extended cherry fermentation adds depth while preserving a bright, terroir-driven core. Its creation spans a chain of producers, processors, cuppers, and sourcing specialists, each influencing the final cup. The result is more than a processing experiment—it’s a testament to collaboration and to Ethiopia’s enduring role at the heart of specialty coffee culture.

What is carbonic maceration?

Carbonic maceration, in coffee, is a fairly high-intervention, controlled natural process that pushes fruit character to its limit while preserving clarity. Whole, freshly harvested cherries are placed into sealed tanks and flushed with carbon dioxide, creating a low-oxygen environment that slows down the initial stages of fermentation. Inside each cherry, enzymatic activity continues at a steadier, more predictable pace. This internal fermentation drives deeper sugar conversion and more complex aromatic development without the off-notes that come from uncontrolled exposure to air.

After maceration, the cherries move to raised beds for a traditional natural drying phase. Sun and airflow draw moisture out slowly, concentrating sweetness and highlighting the structural acidity already built in the tank. The combination of anaerobic fermentation and open-air drying produces coffees with heightened fruit density, polished texture, and a kind of aromatic lift that’s unmistakably tied to variety and place.

In short: carbonic-maceration naturals take the strengths of Ethiopia- or Latin-America-style natural processing, fruit depth, sugar concentration, and refine them with a winemaker’s level of control, yielding expressive yet clean profiles that stay true to their origin.

Brew Guide

Hario V60 Dripper

Carbonic maceration naturals are very easily over-extracted. So, we like to modify our typical brew processes to accommodate for this. To prevent over-extraction we lower the water temp, brew with a pretty large bypass and shoot for a shortish extraction time. This preserves the clarity and fruited character of this unique coffee.

Recipe

Coffee: 25 grams

Grind size: 5.5 on the Fellow Ode (medium)

Water: 375 grams at 195˚F

Coffee to Water Ratio: 1:15

Brew Time: 2:15

Method

1.     Rinse filter

2.     Add ground coffee

3.     Start timer and saturate grounds with 75g, or so, of water.

4.     Let bloom one minute.

5.     Slowly pour another 225g of water on the coffee, taking care to evenly saturate the grounds. You should end up with 300g of water poured by about 1:45.

6. Swirl brewer to ensure an even draw down of water through the bed of coffee.

7. After all water draws down, remove the brewer from your carafe.

8. Add 75 grams fresh, hot water to the carafe to dilute the brew to the proper strength.

9. Swirl the carafe once more to ensure the brew is homogenized.

10. Pour and enjoy!

Brew Guide

Aeropress Brewer

Follow the same principals of the pour over (lower temp, big bypass and quick extraction) to reveal a vibrant cup with strong fruit and floral notes, complex acidity, and a full, silky body.

Recipe

Coffee: 20 grams

Grind size: 4 on the Fellow Ode (medium-fine)

Water: 300g at 195˚F

Coffee to Water Ratio: 1:15

Brew Time: 1:30

Method

1.     Rinse filter

2.    Invert aeropress and add ground coffee

3.     Start timer and saturate grounds with 60g water. Stir coffee slurry to ensure all of the grounds are saturated.

4.     Let bloom 30 seconds.

5.     Add another 100g water to the brewer and stir.

6. At 1:00 stir coffee again and screw filter onto top of brewer.

7. Flip brewer onto a carafe or cup and press the plunger slowly and evenly so that you have finished the press at 1:30.

8. Add 140g clean, hot water to the carafe or cup.

9. Stir or swirl to ensure your brew is properly mixed. Pour and enjoy.