Coffee Beans Classification by defect
What is a defect
| Defective bean |
any coffee bean which is not wholesome or sound, ie has been damaged physically or chemically |
| Defects |
describes the quality factor based on physical appearance (defective beans) including extraneous matter |
| Black beans |
coffee beans which are wholly black |
| Extraneous matter |
anything other than coffee beans, and in case of Arabica coffee, Robusta beans are considered extraneous matter |
| Unhulled coffee |
coffee not removed from the dried cherry (where the husk is not removed during the process of hulling) |
| Insect damaged |
coffee beans which have been damaged or eaten by insects or weevils |
| Pin Hole |
pinholed coffee beans by insects |
| Chalky white |
coffee beans whitish in colour and usually light weight |
| Discoloured |
coffee beans with brown, black discolouration |
| Withered, malformed, shrivelled |
coffee beans showing abnormal shapes resulting from growth defects, eg weather and nutritive deficiency |
| Badly broken |
coffee beans that are broken, during handling, into less than three quarters |
Possible defects
| Black bean |
| Broken bean |
| Cherry |
| Diseased bean |
| Dried-out bean |
| Eaten bean |
| Half-black bean |
| Husk (Large) |
| Husk (Small) |
| Parchment bean |
| Quaker |
| Shell |
| Sour bean |
| Stone, twig or hull (large) |
| Stone, twig or hull (medium) |
| Stone, twig or hull (small) |
| Undesirable bean |
| Unripe Bean |