How Cup Quality Is Measured in CQI Robusta Grading
7. How Cup Quality Is Measured in CQI Robusta Grading Cup quality is where Fine Robusta grading gets its most direct, sensory evidence — here's how...
7. How Cup Quality Is Measured in CQI Robusta Grading
Introduction
Cup quality is where Fine Robusta grading gets its most direct, sensory evidence — here's how that evaluation actually happens.
Why This Matters
Understanding the cupping process helps buyers trust that a score reflects a rigorous, repeatable tasting evaluation, not a single subjective impression.
Main Explanation
Cup quality evaluation begins with careful sample preparation: coffee is roasted to a standardized, light-to-medium profile designed to reveal inherent qualities rather than roast character, then rested for a specific period before cupping.
During the cupping session, certified R-Graders assess the coffee across multiple bowls of the same lot, evaluating fragrance, aroma, flavor, aftertaste, salt/acid ratio, bitter/sweet ratio, mouthfeel, balance, and uniformity — typically cupping in silence and independently before comparing notes, to avoid influencing each other's scores.
Graders taste and re-taste as the coffee cools through several temperature stages, since different attributes become more apparent at different temperatures. Scores from each bowl are recorded and averaged, with significant inconsistency between bowls of the same lot flagged as a uniformity issue that can affect the final score.
Comparison Table
| Cupping Stage | Purpose |
|---|---|
| Standardized roasting | Reveal intrinsic quality, not roast character |
| Independent scoring | Reduce bias between graders |
| Multi-temperature tasting | Capture attributes at different cooling stages |
| Multi-bowl evaluation | Assess consistency across the same lot |
Real Examples
If one bowl from a lot scores notably lower than the others during cupping, that inconsistency itself becomes part of the uniformity assessment, potentially affecting the lot's overall Fine Robusta eligibility.
Faq
Why is coffee cupped at multiple temperatures?
Because different flavor and aroma characteristics become more or less apparent as coffee cools.
Do graders taste together or separately?
Typically independently at first, to avoid influencing each other's initial scores.
How many bowls are cupped per lot?
Multiple bowls are standard practice, specifically to check for consistency across the lot.
Does roast level affect the score?
Cupping uses a standardized roast specifically to minimize roast-related bias in scoring.
What happens if bowls score very differently?
It's flagged as a uniformity concern, which can impact the lot's final classification.
Conclusion
Cup quality measurement in Fine Robusta grading is a carefully controlled, repeatable process — designed to produce a score that reflects the coffee itself, not the conditions of a single tasting.
Cta
Want to understand the cupping notes behind a specific lot? OCC can share detailed session records for our Fine Robusta coffee.
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