Process

Carbonic Maceration

Carbonic maceration (CM) ferments whole cherries in a sealed tank flushed or pressurized with carbon dioxide — a technique borrowed from winemaking. It is a specific, more controlled cousin of generic 'anaerobic' fermentation, with named washed and natural variants.

General coffee-processing knowledge, sourced below. Panama-specific claims are separated into their own section.

Characteristics

Wine-like, juicy, vibrant

Typical production steps

1) Load whole cherries into a sealed stainless tank; 2) purge oxygen with CO2; 3) ferment at controlled temperature for days to weeks as CO2 builds pressure; 4) then process the cherries as washed (CM washed) or dry them whole (CM natural). Some producers run multi-stage CM — for example Savage Coffees' 'Enigma' is labeled an extended natural CM process.

What the label does and doesn't establish

CM establishes that whole cherries fermented under CO2 in a sealed tank. It is not interchangeable with every 'anaerobic' label, and a 'carbonic macerated washed' lot is a washed coffee first. The label does not establish flavors, scores, or additives — yeast inoculations are a separate technique even when used alongside CM.

Attributed sensory descriptions

Sellers of CM lots attribute winey, intensely fruity, sometimes effervescent profiles; specific descriptors are the seller's own and vary sharply between lots.

Seller-attributed cupping language — a processing label never guarantees a flavor.

Documented use in Panama

Documented at one Panama producer-roaster: Savage Coffees (Finca Deborah / Iris Estate) sells multiple carbonic-maceration Geisha lots, including a washed CM ('Illumination') and an extended natural CM ('Enigma'). No other producer in this database uses the CM label.

·Savage Coffees Illumination — Washed Carbonic Macerated (from $28)
·Savage Coffees Enigma — Extended Natural Carbonic Macerated Process, Iris Estate (from $37)
·Savage Coffees Horizon — Hybrid Yeast Inoculation, natural carbonic maceration line

Carbonic Maceration coffees (3)

Matched from seller labels across the catalog (3 currently available). Exact seller labels are preserved on each record.

Sources

Facts reviewed 2026-10-01← All processes

Carbonic Maceration

Documented use in Panama

Carbonic Maceration coffees (3)

Horizon | Hybrid Yeast Inoculation (Savage Coffees)

Enigma | Extended Natural Carbonic Macerated Process (Savage Coffees)

Illumination | Washed Carbonic Macerated (Savage Coffees)

Sources