tags: [] - coffee/quality-control - coffee/quality-control/grading aliases: - Specialty grade criteria - SCA specialty grade - Specialty coffee requirements created: 2026-05-09 updated: 2026-05-09

Specialty Grade Requirements¶

Tags: #coffee/quality-control #coffee/quality-control/grading Aliases: Specialty grade criteria, SCA specialty grade, Specialty coffee requirements Related: Quality Control MOC | Defect Grading | SCA Cupping Protocol | Specialty Coffee Status: ✅ Complete

Overview¶

Specialty grade is the classification applied to green coffee that meets two simultaneously enforced criteria defined by the Specialty Coffee Association (SCA): a physical green sample free of primary defects and with minimal secondary defects, and a cupped score of 80 points or above on the SCA 100-point scale. Neither criterion is sufficient alone — a physically flawless lot that cups below 80 is not specialty grade, and a high-scoring lot that contains a single primary defect is disqualified regardless of its cup quality. Together these two thresholds distinguish specialty coffee from premium and commodity grades.

The Dual-Criteria Framework¶

Specialty grade status requires both of the following to be satisfied on the same lot:

Criterion	Threshold
Physical green sample (350 g) — Category 1 defects	Zero
Physical green sample (350 g) — Category 2 defect equivalents	Maximum 5 full equivalents
SCA cupping score	Minimum 80 points
Quakers (roasted sample)	Zero allowed

The physical grading and the cupping evaluation are conducted as separate procedures, but both results are required before a lot can be labelled specialty grade. Passing one does not waive the other.

Physical Green Grading¶

Sample and Methodology¶

Green grading is performed on a 350 g representative sample drawn from the lot. The sample is spread on a sorting tray — conventionally black or dark-coloured to aid visibility — and physically sorted by hand. Each defect is identified, counted by type, and assigned to its defect category.

Category 1 Defects (Primary)¶

Category 1 defects are severe flaws that produce pronounced off-flavours in the cup. The SCA standard requires zero Category 1 defects in the 350 g sample for specialty classification. A single instance disqualifies the lot.

Defect	Cup impact
Full black bean	Phenolic, fermented; severe and pervasive
Full sour bean	Vinegar-like acetic notes; severe
Dried cherry or pod	Mouldy, fermented; contaminates adjacent beans
Fungus-damaged bean	Musty, earthy; associated with ochratoxin risk
Foreign matter (stone, stick, metal)	Equipment damage risk; no cup contribution
Severe insect damage	Woody, bitter; structural bean degradation

Each Category 1 defect counts as one full defect in the total.

Category 2 Defects (Secondary)¶

Category 2 defects are less severe flaws that, in small numbers, have limited cup impact. The SCA standard permits a maximum of five full defect equivalents in the 350 g sample. Multiple Category 2 instances are aggregated using equivalence factors to arrive at a full-defect count.

Defect	Equivalence	Cup impact
Partial black bean	3 = 1 full defect	Moderate off-flavour
Partial sour bean	3 = 1 full defect	Ferment note
Parchment	5 = 1 full defect	Papery, haylike
Floater	5 = 1 full defect	Grassy, astringent; roasts unevenly
Immature or unripe bean	5 = 1 full defect	Astringent, grassy
Withered bean	5 = 1 full defect	Underdeveloped in roast
Shell bean	5 = 1 full defect	Hollow; dilutes cup quality
Broken, chipped, or cut	5 = 1 full defect	Uneven extraction
Hull or husk	5 = 1 full defect	Papery; processing residue
Slight insect damage	5 = 1 full defect	Minor off-flavour

The grader sums all Category 1 counts and all Category 2 full-defect equivalents to produce the total defect count for the lot.

Quakers¶

Quakers are pale, underdeveloped beans that fail to roast normally due to immaturity at harvest. They are assessed in the roasted sample rather than the green sample, and the SCA specialty standard permits zero quakers. Their presence indicates poor cherry selection and results in a flat, starchy contribution to the cup.

Moisture Content¶

The SCA green coffee standard specifies that specialty-grade coffee must have a moisture content between 10% and 12% (measured at standard atmospheric conditions). Coffee outside this range is at elevated risk of mould, flavour degradation, or premature ageing during storage and transit.

Cup Score Requirement¶

The 80-Point Threshold¶

The SCA cupping protocol evaluates ten sensory attributes, each scored on a scale of 6 to 10 with 0.25-point increments. A total score of 80 points or above is required for specialty classification.

Score band	Classification
90–100	Outstanding / Exceptional
85–89.99	Excellent
80–84.99	Very Good (specialty grade minimum)
75–79.99	Premium (below specialty)
60–74.99	Exchange grade (commercial)
Below 60	Below standard

Scored Attributes¶

The ten cupping attributes and their scoring basis:

Attribute	Notes
Fragrance / Aroma	Dry and wet evaluation; complexity and quality
Flavour	Primary taste and retro-nasal aroma impression
Aftertaste	Length and pleasantness of lingering flavour
Acidity	Quality and intensity of perceived brightness
Body	Tactile weight and mouthfeel texture
Balance	Harmony and integration of all attributes
Uniformity	Consistency across the five-cup flight (2 points per cup)
Clean Cup	Absence of defects or off-flavours (2 points per cup)
Sweetness	Presence of pleasant sweetness (2 points per cup)
Overall	Holistic cupper preference score

Uniformity, Clean Cup, and Sweetness are evaluated cup by cup across five cups in the flight; a deficiency in any single cup results in a deduction.

Who Can Score¶

Lot scores intended for specialty certification and trade documentation are conventionally produced by certified Q Graders — professionals licensed by the Coffee Quality Institute (CQI) who have demonstrated calibrated scoring ability. Multiple cuppers scoring the same lot and averaging their results increase assessment reliability. See Q Grader Certification for the certification programme detail.

Why Both Criteria Must Be Met¶

The dual-criteria structure reflects that physical defects and cup quality measure different dimensions of lot quality. A coffee may be physically clean due to mechanical colour-sorting, yet cup below 80 points because of poor variety selection, inadequate agricultural practice, or flawed fermentation. Conversely, an exceptionally complex lot contaminated with even one full black bean poses an adulteration risk — the defect's off-flavour can overpower or taint the cup, and the black bean may indicate the presence of pathogens or mycotoxins.

Requiring both criteria closes the gaps that either single measure would leave open.

Grade Tiers in Context¶

Specialty grade sits at the top of a four-tier classification framework:

Grade	Category 1 defects	Category 2 equivalents	Cup score
Specialty	0	0–5	80+
Premium	0	0–8	75–79.99
Exchange	0–3	Up to 23	60–74.99
Below Standard	Exceeds limits	—	Below 60

Premium grade approximates specialty in physical cleanliness but falls short on cup quality. Exchange grade (commercial grade) represents the commodity mainstream. Below Standard coffee is typically rejected by quality-focused buyers.

Practical Application¶

Importers, exporters, and roasters apply specialty grade requirements at several points in the supply chain:

At origin: Producers seeking specialty positioning submit samples for green grading and cupping by certified graders before export. Results are recorded on a Q Grade report that accompanies the lot.

At the roastery: Receiving inspection may include a grading and cupping check on arrival to verify the lot matches its documentation. Significant discrepancy between the Q report and in-house results may indicate transit damage or misrepresentation.

At purchasing: Spot and forward contracts for specialty coffee typically specify cup score minima (e.g., 84+), defect limits, moisture range, and screen size, all framed against the SCA specialty standard.

Key Facts¶

Specialty grade requires zero Category 1 defects and no more than five full Category 2 defect equivalents in a 350 g green sample, plus a cupping score of 80 or above on the SCA 100-point scale
Zero quakers are permitted in the roasted sample
Moisture content must be between 10% and 12%
Both the physical grade and the cup score must be met simultaneously — satisfying one does not substitute for the other
Q Graders certified by the Coffee Quality Institute (CQI) are the recognised practitioners for issuing specialty grade assessments in trade contexts
Specialty grade represents approximately the top 10% of globally produced coffee by volume

References¶

This article is part of All-About-Coffee.com - The comprehensive coffee knowledgebase.