Fermented and Macerated Coffee: What They Are and Why They Are Changing the Specialty Coffee World

Coffees with controlled fermentations (anaerobic, carbonic macerations, thermal shocks) are transforming the industry. On one hand, they offer surprising sensory profiles, close to tropical fruits or fortified wines; on the other, they raise a technical and ethical question: should the genetics of the bean be enhanced or should defects of mediocre raw material be covered up?

In special fermentations, producers seal the cherries in oxygen-free steel tanks (anaerobiosis) or tanks saturated with CO2 (carbonic maceration, borrowed from winemaking). This promotes the development of selected bacterial strains that produce complex organic acids.

The philosophy of Garage Coffee Bros. is clear: fermentation must amplify the natural potential of the batch, not mask low-quality beans. In one of our anaerobic coffees, you can perceive the transparency of the terroir combined with a marked aromatic complexity.