What is a Q Grader?
A Q Grader is a certified professional who evaluates coffee quality (both green and roasted). Historically, certification has been administered by the Coffee Quality Institute (CQI) in partnership with the Specialty Coffee Association (SCA). During professional cuppings, dozens of cups can be tasted in a single day, so a Q Grader needs to blend sensory precision with strong methodical discipline.
In 2025, the SCA and CQI announced the “evolved Q Grader.” As of October 1, 2025, the SCA will manage the updated program based on the Coffee Value Assessment (CVA). Until that date, current Q licenses remain valid. Details are available at SCA: Q Grader Program (official overview).
History and the Q Grading system
The global Q system took shape in the 2000s and trained evaluators to work with the SCA form (2004). Today, the content is evolving along the lines of the Coffee Value Assessment (CVA). In November 2024, the SCA officially adopted new cupping standards (SCA-102/103/104-2024), which replace the 2004 protocol and cupping form. To transition to CVA, the official “CVA for Cuppers” courses are helpful.
Coffee evaluation criteria
Q Graders use standardized cupping protocols. Historically, in the SCA form, key categories were scored on a 6–10 scale (Good→Outstanding), and 5 cups per lot were set to evaluate representativeness. In CVA, standardized sample preparation and the counting of defective/non-uniform cups are retained.
- Sensory attributes are recorded according to protocol; a handy tool is the CVA Cupping Score Calculator.
- Green grading (350 g): for specialty — 0 Category 1 defects and ≤5 Category 2 defects. Details in the SCA Coffee Standards (PDF).
- CQI Q Coffee™: separate licenses for Arabica and Robusta; exam and calibration status is listed at CQI: Q Exams & Calibrations.
About very high scores: in the Cup of Excellence competition, winners typically score 87+ (and 90+ is relatively rare). See the ACE/CoE threshold rules.
The Q Grader’s role in the coffee industry
Q Graders’ services are needed from the farm level to roasters, traders, quality laboratories, and coffee schools. They help make purchasing decisions, monitor flavor consistency, and facilitate communication across the supply chain.
There are separate certifications for Arabica and Robusta (Q Arabica / Q Robusta) — holding a license for one species does not grant the right to officially evaluate the other.
How to become a Q Grader
The classic course takes 6 days (3 for training and 3 for exams) and includes 19 exams grouped into 9 modules (sensory skills, triangulations, aromatics, green/roasted grading, etc.). The license is valid for 36 months; renewal requires a successful calibration. For schedules and available sessions, see the CQI course catalog.
Conclusion
The Q Grader profession is a blend of science, taste, and experience. These experts help transparently assess coffee’s value throughout the entire chain — from farm to cup.
See also
Frequently Asked Questions (FAQ)
- What is Q Grader certification?
- Official confirmation of competencies within the CQI/SCA system. The course includes 19 exams across 9 modules: sensory skills, green/roasted grading, triangulations, working with aroma standards, and general coffee knowledge.
- How long do the training and exams take, and how long is the certificate valid?
- The typical format is 6 days (3 days of training + 3 days of exams). The license is valid for 36 months and is renewed through successful calibration.
- Can an Arabica Q Grader evaluate Robusta?
- No. Robusta requires a separate Q Robusta Grader certification.
- How many cups are set out in a cupping?
- Usually 5 cups per sample to assess uniformity.
- Does “90+” automatically mean Cup of Excellence level?
- No. Cup of Excellence winners are mostly 87+; 90+ is relatively rare and is not the “definition of specialty.”
