SOUR BEAN - Peacock

SOUR BEAN

A “sour” is a physical coffee bean defect due to excess fermentation where bacteria or xerophilic mould attack the seed. They range from yellow to brown in color, and can occur from several conditions: over-fermentation, falling to the ground, excessive time between harvest from the tree and processing. The favor from sours is (no surprise) sour, fermented, acetic, fruity, sulfurous, vinegary.