Specialty Coffee Grading (SCA)¶
Specialty Coffee
Coffee scoring 80 points or above on the SCA 100-point scale with zero Category 1 defects. Represents top ~10% of coffee produced globally. Focuses on quality, traceability, and distinct flavor characteristics.
SCA (Specialty Coffee Association)
Global organization setting standards for specialty coffee. Formed 2017 from merger of SCAA (Specialty Coffee Association of America) and SCAE (Specialty Coffee Association of Europe). Defines quality standards, protocols, education.
SCA 100-Point Scale
Scoring system evaluating coffee quality across 10 attributes. Total possible: 100 points. Specialty grade: 80+. Each attribute scored typically 6-10 points with 0.25 increments possible.
Cupping Score Sheet
Standardized form for evaluating coffee. Records scores for each attribute plus defects. Allows consistent, comparable assessment. Updated 2015 to current version.
Quality Grades
Specialty Grade
80-100 points, zero Category 1 defects. Distinct attributes, free from defects. Represents highest quality. Price premiums expected.
Premium Grade
75-79.99 points. Good quality but below specialty. May have minor defects or less complexity. Better than commercial but not specialty.
Exchange Grade
60-74.99 points. Commodity quality coffee. Commercial grade. May have defects. Acceptable for blending or lower-end use.
Below Standard/Off-Grade
Below 60 points. Poor quality, significant defects. Not suitable for specialty or commercial use. Often rejected or used for low-grade instant coffee.
Scoring Attributes
Fragrance/Aroma (10 points)
Fragrance: smell of dry grounds. Aroma: smell after adding water. Evaluates intensity, quality, complexity of aromatics. Assessed at multiple points in cupping.
Flavor (10 points)
The combined taste and aromatics when coffee is in mouth. Central attribute. Evaluates: quality, intensity, character, complexity. Most weighted assessment perceptually.
Aftertaste (10 points)
Length and quality of flavor remaining after swallowing or spitting. Positive aftertaste lingers pleasantly. Negative turns harsh, bitter, or sour. Duration and quality both matter.
Acidity (10 points)
Quality and intensity of acidity/brightness. NOT amount of acidity. Evaluates: pleasantness, complexity, structure. High score = vibrant, pleasant, structured acidity.
Body (10 points)
Tactile mouthfeel - weight, texture, viscosity. Evaluates quality and appropriateness. Not just "more is better." Should fit coffee's character.
Balance (10 points)
How well flavor, acidity, body, and aftertaste work together. Harmony and integration. Even minor imbalances lower score. Challenging attribute to assess.
Sweetness (10 points)
Fullness of sweetness, pleasant taste perception. Evaluated as yes/no for each cup (5 cups per sample). Each "sweet" cup = 2 points. Roast development and processing quality indicator.
Clean Cup (10 points)
Absence of defects or off-flavors from first sip through aftertaste. Evaluated as yes/no for each cup. Each clean cup = 2 points. Processing and sorting quality indicator.
Uniformity (10 points)
Consistency of flavor across 5 cups of same sample. Evaluated as yes/no for each cup. Each uniform cup = 2 points. Lot consistency and processing indicator.
Overall (10 points)
Cupper's holistic evaluation considering all factors. Personal assessment of coffee's overall quality and appeal. Allows individual preference expression within standards.
Defect Deductions
Category 1 Defects (Primary)
Severe defects, each subtracts 4 points:
- Full black
- Full sour
- Dried cherry/pod
- Fungus damaged
- Foreign matter
- Severe insect damage
Zero Category 1 defects required for specialty grade
Category 2 Defects (Secondary)
Minor defects, each subtracts 2 points:
- Partial black
- Partial sour
- Parchment
- Floater
- Immature/quaker
- Withered
- Shell
- Broken/chipped
- Hull/husk
Maximum 5 Category 2 defects for specialty grade
Defect Counting
Counted in 350g green coffee sample. Specific defects count as multiple defects (e.g., 1 full black = 1 full defect; 2-3 partial blacks = 1 defect). Standardized counting crucial.
Cupping Protocol Requirements
Sample Roast
Roasted 8-24 hours before cupping. Light roast (Agtron 58-63 for whole bean, 63-70 for ground). Roasted to first crack end, City to City+. Minimizes roast impact on evaluation.
Grind & Water
8.25g coffee to 150ml water (1:18.18 ratio). Medium grind (70-75% passing 20 mesh screen). Water: 200°F (93°C), TDS 125-175ppm, clean, odor-free.
Cupping Procedure
1. Evaluate fragrance (dry)
2. Add water (4:00 steep minimum)
3. Break crust (3:00-5:00), evaluate aroma
4. Skim surface
5. Begin tasting at ~70°C
6. Continue as coffee cools (~70°C to ~50°C)
7. Score all attributes
Multiple Cuppings
Minimum 5 cups per sample for uniformity assessment. Often multiple cuppers for calibration. Blind cupping prevents bias. Multiple cuppings increase reliability.
Score Interpretation
90-100: Outstanding
Extraordinary coffee, rare. Complex, unique, distinct. Near-perfect in multiple attributes. Competition winners, micro-lots, exceptional coffees.
85-89.99: Excellent
High-quality specialty coffee. Distinct, desirable attributes. Premium pricing justified. Many Cup of Excellence, top micro-lots.
80-84.99: Very Good
Specialty grade, good quality. Some distinct attributes. Most specialty coffee trades here. Standard for quality-focused roasters.
75-79.99: Good (Below Specialty)
Above average but not specialty. Missing distinctiveness or has minor flaws. May work in blends. Better than commercial.
Below 75: Below Standard
Commodity or defective coffee. Not suitable for specialty market. May have significant defects or lack quality.
Q Grader
Certified coffee professional trained in SCA grading protocols. Rigorous examination and calibration. License requires renewal/recalibration every 3 years. Recognized globally for quality assessment.
Q Arabica Grader
Specialist in Arabica quality assessment. Passed 20-section exam covering sensory skills, green grading, roasting, cupping. Can officially score and grade Arabica coffee.
Q Robusta Grader
Specialist in Robusta quality assessment. Separate certification due to different quality parameters. Growing importance as Robusta quality improves.
Calibration
Process of aligning cuppers' scoring to consistent standards. Regular calibration sessions ensure reliable, comparable scores. Essential for fairness and accuracy.
Scoring Challenges
Subjectivity
Despite standards, cupping involves sensory perception (inherently subjective). Training and calibration reduce but don't eliminate variation. Multiple cuppers increase reliability.
Environmental Factors
Cupping affected by: time of day, palate fatigue, health, recent eating, ambient conditions. Protocols minimize but can't eliminate these factors.
Sample Preparation
Roasting and preparation variations affect scores. Sample roast quality crucial. Poorly roasted sample ruins good coffee evaluation.
Aging/Resting
Coffee age and rest time affect cup profile. Sample roasted 8-24 hours prior standard but may not represent optimal drinking profile. Trade-off between standardization and reality.
Related Notes: - Coffee Terminology MoC