Classification of Indian Coffee.


Coffee Arabica ( Arabica ) and coffee canephora ( robusta ) are the two principal varieties commercially cultivated in india .


These two varieties are classifies as washed ( wet processed ) and unwashed ( natural /dry processed / cherry ) based on the method of estate level processing the coffees are subjected to.


The washed & unwashed arabicas and robustas are broadly classified into 4 categories based on the quality standards and the preference these grades enjoy in the world market.


The categories are :


  • Commercial Grades – 25 grades
  • Premium grades – 10 grades
  • Specially grades – 7 grades
  • Miscellaneous grades – 2 grades

These major categories are further classifies into different grades based on the size of Thebans and percentage of imperfections.


In the Indian system of grading and garbling , the tolerance level for each and every grade is specified and expressed in percentage by weight. Quality specifications for Indian coffee entail that all the grades are totally free from foreign and extraneous matters.


Garbling Standard and Tolerance


Grades Tolerance
{Plantation Clean garbled 2% PB
AA {Arabica Cherry Clean garbled 2% PB, 1% Triage
{ Robusta Cherry Clean garbled 2% PB, 1% Triage
{ Arabica Cherry Clean garbled 2% PB ,2% Triage
A { Robusta Parchment Clean garbled 2% PB
{ Robusta Cherry Clean garbled 2% PB , 2% Triage
{ Plantation   2% Flats ,2% PB Triage
PB{ Arabica Cherry Clean garbled 2% Flats ,2% PB Triage
Bold { Robusta Parchment Clean garbled 2% Flats, 2% PB Triage
{ Robusta Cherry Clean garbled 2% Flats ,2% PB Triage

Specialty Coffees – Sieve and quality specification


( A ) Mysore Nuggets EB ( Extra Bold ) - From Arabica Parchment


Screen No. Sieve ( mm ) Min.Retention% Garbling Status Tolerance

19

7.50

90.0

Clean Garbled No tolerance for
17 6.65 100.0   any defects

Robusta Kaapi Royale


Screen No. Sieve ( mm ) Min.Retention % Garbling Status Tolerance

17

6.70

90.0

Clean Garbled No tolerance for
15 6.00 100.0   any defects

Commercial grades - Sieve Specifications


Grades Arabica Robsuta
Plantation Cherry Parchment Cherry
Screen no. Sieve (mm)

Min.Re

Tention %
Screen no. Sieve (mm)

Min.Re

Tention %
Screen no. Sieve (mm)

Min.Re

Tention %
Screen no. Sieve (mm)

Min.Re

Tention %
AA

18

17

7.10

6.65

90.0

100.0

18

17

7.10

6.65

90.0

100.0

-

-

-

-

-

-

18

17

7.10

6.65

90.0

100.0
A

-

-

-

-

-

-

17

15

6.65

6.00

90.0

100.0

17

15

6.65

6.00

90.0

100.0

17

15

6.65

6.00

90.0

100.0

PB

Bold
12(Oblong) 4.75 100.0 12 4.75 100.0 11 4.50 100.0 11 4.50 100

Monsooned Malabar Coffees


Grades Screen No. Sieve (mm) Min Retention % Garbling Status Tolerance
inner_papper

"Referred By Indian Courtesy Coffee".