ISO 10470:1993

Green coffee — Defect reference chart

Gives a listing in chart form of the main types of defect. Each of the following main types of commercial green coffee is considered separately: wet-processed Arabica, dry-processed Arabica, dry-processed Robusta. The chart gives definitions and characteristics of each defect, together with its likely cause, and its effect on roasting and on brew flavour of the roasted bean. A qualitative assessment of the effects of the defects on appearance and flavour is also given in terms of their generally accepted significance.