Grading in PNG
PNG recently released new naming protocols and grading standards. The changes create a more streamlined grading scale for PNG coffees. A is the highest grade, following by B and then Y, Y2 and finally, Y3. Screen size naming has also been changed to reflect global standard by replacing letters with screen sizes.
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PLT grade is now A.
A grade lots are marked by a balanced, uniform & clean cup. Body and acidity are distinct with rich fragrances and aroma.
PSC grade is now B.
B Grade lots have a clean cup that is regular & uniform. In the cup, the body is pronounced with distinct fragrance and aroma and medium to high acidity.
Y1 grade is now Y.
Y grade lots are mostly uniform with good acidity and body. The cup has good fragrance and aroma and some fruit and wine notes.
Y2 and Y3 remain the same
Y2 is defined as having an “irregular cup profile; fair acidity and body; no foul or foreign off flavor”
Y3 is defined as having “no foul or foreign off flavor”
Screen size changes
AA is now 18+
Meaning that beans are larger than 7 millimeters
A is now 17+
Meaning that beans are larger than 6.75 millimeters
AX is now 15+
Meaning that beans are larger than 6 millimeters
X is now 15
meaning that beans are approximately 6 millimeters
Y is now 14+
Meaning that beans are larger than 5.5 millimeters