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FACTORS INFLUENCING CUP QUALITY IN COFFEE Prepared for the Global Co! ee Quality Research Initiative Brian Howard Draft Copy Global Co! ee Quality Research Initiative Review 1  Photo Courtesy of SPREAD, Rwanda

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8/19/2019 Coffee article.pdf

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FACTORS I N "

FLUENCING CUP

QUALITY INCOFFEE

Introduction

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Global Co ! ee Quality Research Initiative Review 6

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Global Co ! ee Quality Research Initiative Review 7

Above: Quality attributes of green beans of two varieties of Co ! ea arabica grown without shadeand with dense shade # 80$ shade % of Erythrina

poeppigiana at a low elevation. Beans were har"

vested at full maturity. # This gure courtesy ofCATIE %

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Global Co ! ee Quality Research Initiative Review 10

Schematic representation of the tissues pre "sent at the mature stage # 220"250 days afterfertilization %. Photo Courtesy of Nestle Inc.

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4/0(0)&+,/ <&0 5#,: '-</4 ):&+ -+ & 0#0A,/$)(2'/ $#4/ '(+/ ,#')(;&48 9+1(;(1#&' 3&''0-+ ):/ 4--) 0*0)/50 -. :*24(1 ,#')(;&40</4/ .-#+1 )- 2/ 5#,: 05&''/4 ):&+ -+0#0,/$)(2'/ ,#')(;&408 J.)/4 & M */&4 5-+(A

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0&'/3+ .-#+1 ):&) d):(-$(&+ 3/+-)*$/0 -.'-< ,&../(+/ ,-+)/+) )*$(,&''* 0:-</1 &'-</4 ,#$ %#&'()* 2#) ):&) ):/4/ </4/ +-A)&2'/ /F,/$)(-+08 "-+0/%#/+)'* :/ ,-+A,'#1/0 ):&) 0(5#')&+/-#0 0/'/,)(-+ .-4 '-<

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d)(/++/ /) &'87 HDDY 0)&)/0 ):&) ):/ 5-'/,#A'&4 $:*'-3/+* -. "-../& 0$/,(/0 :&0 2//+/0)&2'(0:/1 #0(+3 WSJ 0/%#/+,(+38 B-A'/,#'&4 5&4=/40 </4/ .-#+1 ):&) 4/;/&' &+

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'&)(-+0 #0(+3 ):/ &.-4/5/+)(-+/1 )4&()0 4/A0#')/1 (+ 0(3+(@(,&+) 3/+/)(, 3&(+ .-4 *(/'1&+1 14* </(3:) -. YDD 2/&+0 <(): (+0(3+(@(A,&+) 3&(+0 (+ ./4)('()*8 f:/+ 0/'/,)/1 -+ ):/2&0(0 -. ./4)('()* &'-+/7 (+,4/&0/ (+ *(/'1 &+1

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Quality EvaluationMethods

E:/ 0#,,/00.#' (+)/34&)(-+ -. 3/+/)(, )4&()07

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@(,(/+)7 (+/F$/+0(;/7 &+1 :(3:'* &,,#4&)/(1/+)(@(,&)(-+ -. ,-..// -4(3(+0 &+1 ,:&4&,A)/4(0)(,0 &4/ $&4&5-#+)8

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The Science of Taste

":/5(,&' ,-5$-0()(-+ (+ 4/'&)(-+ )- $4/A

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,'(5&)/ (+ <:(,: 2/&+0 </4/ $4-1#,/18b'#,-0/ ,-+)/+) <&0 $-0()(;/'* &../,)/1 2*&')()#1/ &+1 0-42()-' ,-+)/+) &.)/4 </)$4-,/00(+3 <&0 1(4/,)'* 1/$/+1/+) -+ 3'#A,-0/ ,-+)/+) (+ .4/0: 2/&+08

B-'/,#'&4 B&4=/40

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Harvesting and PostHarvest Handling

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Global Co ! ee Quality Research Initiative Review 19

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Below: Aroma proles of unstored raw co ! eebeans # gray line % and co ! ee bean with a watercontent of 13.5$ stored for 9 months at 40*Cunder an atmosphere of 20 $ oxygen.

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References

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