Koji processing adds a fermentation choice before roasting

Pull & Pour's koji-processing introduction describes the use of a cultivated fungus during coffee-cherry fermentation. The article associates the approach with Kaapo Paavolainen, Christopher Feran and Forest Coffee, and places it among newer processing experiments. The process concerns the coffee before roasting; it is not simply a spice or flavor powder stirred into a finished drink.

The source connects fermentation changes with differences in aroma, sweetness and savory impressions. Such descriptions should remain tied to specific lots and producer methods rather than become a guarantee that every coffee labeled koji tastes alike. A broad process name does not supply all the conditions, handling controls or microbiological information used in a professional production setting.

For a consumer, the useful questions are who produced the coffee, which variety and lot were used, and how the processing is documented. Compare a clearly identified offering through a measured brewing recipe and keep sensory notes separate from the producer's technical explanation. This article is an introduction to reading a processing label, not a complete home fermentation protocol or evidence that a novelty process automatically produces a higher-quality cup.