A study case on coffee (Coffea arabica): Limu Coffe - IRD
A study case on coffee (Coffea arabica): Limu Coffe - IRD
A study case on coffee (Coffea arabica): Limu Coffe - IRD
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Once the origin registered, how is given the grade?<br />
Moisture c<strong>on</strong>tent<br />
Washed <strong>coffee</strong> Unwashed <strong>coffee</strong><br />
The moisture c<strong>on</strong>tent of both processed <strong>coffee</strong>s shall not be<br />
more than 11.5% by weight and minimum 85% by weight of<br />
Raw value The sum of points of shape &<br />
Defect <strong>on</strong> shape and make<br />
for washed <strong>coffee</strong><br />
& defect for unwashed<br />
<strong>coffee</strong><br />
beans remained <strong>on</strong> top of screen 14 after sieving.<br />
make, colour and odour<br />
Under washed; cracked; over<br />
fermented; loss beans;<br />
brownish; dull pods; mixed<br />
fermentati<strong>on</strong>; under<br />
fermentati<strong>on</strong>; discoloured;<br />
nipped; l<strong>on</strong>g c<strong>on</strong>t.<br />
The sum of points of defects<br />
and odours<br />
Foxy; immature; black;<br />
white; solid; broken; wanza;<br />
st<strong>on</strong>e; stick; grains; jenfel;<br />
stinkers.<br />
Cup defect The number of cup defects out of five cups.<br />
Cup quality value The sum of points of cup defect, acidity, body and flavour.<br />
Liquoring (cup testing)<br />
The organoleptic examinati<strong>on</strong> of brewed <strong>coffee</strong> by<br />
professi<strong>on</strong>al cuppers to determine acidity, body, flavour,<br />
defects and characters.<br />
A note is given according to the raw value (40%) and cup quality value (60%). This note<br />
corresp<strong>on</strong>ds to a grade.<br />
Table 13: <strong>Coffe</strong>e test definiti<strong>on</strong>s (Ethiopian Commodity Exchange Authority)<br />
Washed <strong>coffee</strong> graduati<strong>on</strong><br />
Raw value (40%)<br />
Shape & Make (15%) Colour (15%) Odour (10%)<br />
Very good 15 Bluish 15 Clean 10<br />
Good 12 Greyish 12 Fairly clean 8<br />
Fairly good 9 Greenish 9 Trace 6<br />
Average 6 Coated 6 Light 4<br />
Fair 3 Faded 3 Moderate 2<br />
Small/fixed 1 White 1 Str<strong>on</strong>g 1<br />
93