Origin of Some Coffee “Defects”

Origin of Some Coffee "Defects" In the 90s, about 20% of Brazil’s coffee production presented the so-called ‘Rio defect’, characterized by a strong off-flavour, often described as medicinal, phenolic, or iodine-like. Occasionally, this defect also occurs in coffees from other origins. An extensive investigation was carried out in the 90s to identify the compound(s) responsible for this coffee off-flavour. 2,4,6-Trichloroanisole (TCA) was identified as the most likely key compound

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