Gesha
Advanced Fermentation "Noa (乃愛)"
Hachi Project

Tastes Like: White Peach, Sorbet, Verbena

Origin: Jurutungo Farm, Chiriquí, Panama

Variety: Gesha

Producer:  Allan Hartmann and Diego Bermudez

Elevation: 2,000-2,000 masl

Process: Inverted Process

The Inverted Process developed at Hachi turns conventional fermentation sequencing on its head— beginning with whole cherry fermentation submerged in a tailored culture medium before depulping and washing. This first stage is designed to preserve the integrity of the fruit's skin and mucilage, allowing controlled biochemical exchange across the intact cherry while modulating the osmotic flow of metabolites. The cherries ferment for 24 hours in a liquid solution enriched with water, enzymes (typically pectinase and glucosidase), and selected yeast strains, either wild isolates from the same coffee batch or engineered yeasts chosen for their capacity to enhance floral, fruity, or structural attributes.
This reverse sequencing offers several biochemical advantages. The intact cherry acts as a semi-permeable barrier, enabling slow infusion of the enzymatic medium while retaining the coffee’s natural precursors within the fruit. This approach creates a stable environment for yeast-driven fermentation, minimizing acetic stress and allowing for the targeted breakdown of pectin and complex sugars. After this carefully timed phase, the cherries are depulped and immediately washed, halting microbial activity at a peak of aromatic and structural development. This prevents over-fermentation and preserves the desired flavor profile.
The coffee is then moved to our dark-room dehumidification chambers, where it dries gradually away from UV light and oxidation risk. The result is a cup profile marked by refined fruit clarity, clean acidity, and well-integrated body, without the heavy-handed influence often associated with long cherry fermentations. The Inverted Process is a tribute to Hachi’s philosophy — using biotechnology not to overpower the coffee, but to guide it toward its most elegant expression.