How Cup Quality Is Measured in CQI Robusta Grading

Short answer: Historical CQI Robusta cupping assessed a prepared sample under a specified sensory protocol; the recorded score described that sample rather than the whole crop. Coffee Quality Institute stopped accepting new samples for grading on 30 September 2025. Since October 2025, the Specialty Coffee Association has administered the revised Q Grader programme using Coffee Value Assessment. This article explains what a historical sensory result can tell a buyer without passing it off as a current CQI service.

First identify the document being interpreted

A seller may forward a historic Q Robusta report, an internal cupping sheet, a current CVA assessment or a screenshot with a total score. Those are not equivalent. Before comparing numbers, ask for the originating organisation, evaluation date, protocol version, coffee identity and full report. A screen capture cropped to show only the total cannot reveal its sample code, defect conditions or evaluator notes. It cannot prove that a present shipment is the same coffee.

The historical CQI programme used specialist Robusta training and evaluation materials intended to establish a shared approach to grading. Its archived course descriptions include sensory evaluation, green and roasted grading, defect recognition and processing knowledge. CQI's archived sample records demonstrate the importance of identifying the lot and the particular evaluation rather than treating a score as a permanent property of a species.

Standardize the roast and sample preparation

Sensory comparisons depend heavily on preparation. A cupper should identify the sample roast, resting period, dose, grind, water, vessel and timing prescribed by the method actually used. Do not assume that an Arabica sample roast copied without adjustment is automatically a correct historical Robusta protocol; use the relevant version's published instructions. Nor should a buyer interpret a seller's ordinary retail roast as if it were a controlled grading roast.

Sample preparation should minimize variation unrelated to the green coffee. If one bowl uses a different grind or contaminated vessel, its result may not represent the lot. Record deviations instead of silently discarding them. A repeat session should use the same procedure, while a separate espresso or milk-drink test can assess commercial suitability later.

Assess several cups and temperatures

Multiple bowls help detect variation within a sample. Tasters can first note dry-ground fragrance, then aroma after water is added, before assessing flavour and aftertaste at suitable temperatures. The specific historical form may include mouthfeel, balance, clean cups and uniformity as well as Robusta-specific sensory balance terminology. Cupping through cooling stages can reveal perceptions that were less obvious in the hottest cup.

A single strange bowl warrants investigation rather than an instant claim that an entire shipment is defective. Confirm cleaning, sample allocation and the nature of the off-note. If variation persists across repeat bowls, document it as possible non-uniformity. The buyer needs both the observation and the procedure that produced it.

What trained graders contribute

Training and calibration help professionals use sensory vocabulary consistently and recognize relevant defects. They do not make sensory evaluation infallible or transform preferences into chemical measurements. Independent observations followed by discussion can be useful, depending on the prescribed method. If a report combines the work of several graders, retain the individual values and aggregation rule when available. A number without a method is not an independently verifiable result.

The licence of the grader is a professional credential, while a certificate or report on a coffee is a separate object. Do not claim that every cup tasted by a qualified Q Grader is automatically certified. Verify current professional credentials through the responsible body; the SCA now operates the revised Q Grader programme.

Physical grading is related but separate

A beautiful cup cannot erase a contractual defect problem. Evaluate the green sample under the applicable physical specification, documenting sample mass, category definitions, moisture measurements where available and the agreed decision rule. A clean physical sample can still produce a poor sensory result; a pleasing sensory sample can fail a physical condition. The registered Fine Robusta grading guide provides the broader framework and formal Owner route.

The distinction matters to Cambodian exporters and importers because an origin name cannot substitute for evidence. If a supplier reports a 2024 score, the buyer must connect the archived sample to the offered crop and separately assess the current shipment. The region itself cannot inherit that score.

How the current SCA approach differs

Coffee Value Assessment uses four complementary dimensions: physical characteristics, descriptive sensory attributes, affective judgements and extrinsic information. This makes it easier to explain why a coffee can be distinctive yet unsuitable for a particular market, or traceable yet physically defective. A current descriptive assessment should not be converted casually into a legacy CQI total. Keep original forms, dates and methods intact when presenting both.

A buyer can request coded evaluations from competent tasters and use the current framework to create a detailed comparison. The commercial acceptance contract should define the quality conditions independently of marketing language. If a seller cannot provide a historical certificate, it can still offer honestly labelled, reproducible internal measurements rather than manufacturing one.

A buyer's five-question interpretation test

What exact lot and sample were evaluated? Which version of which form was used? Who performed the assessment and when? Were physical conditions assessed separately? Does the current offer demonstrably match the assessed sample? If any answer is missing, treat the score as limited evidence and request clarification before basing a price or volume commitment on it.

Origin Coffee Cambodia (OCC.)'s Fine Robusta Cambodia guide provides country-level context, while Wholesale Coffee Supply is the commercial route for verified specifications and terms. Neither page proves a score, stock position or certification for a particular lot.

Faq

Does a high historical score guarantee the next harvest? No. Different crops and lots need independent evaluation.

Did CQI keep taking new grading submissions after 2025? Its public archive says intake stopped in September 2025.

Can two graders disagree? Yes. Method, calibration, sample handling and sensory variation should be examined and recorded.

Is current CVA simply the old 100-point score renamed? No. The current approach distinguishes several types of assessment.

Sources

• CQI archived coffee submissions: https://database.coffeeinstitute.org/coffees
• CQI historical Q Robusta training description: https://database.coffeeinstitute.org/course/7300
• SCA revised Q Grader launch: https://sca.coffee/sca-news/2025/10/1/q-grader-courses-now-available-across-various-regions-and-languages-zakzc
• SCA Coffee Value Assessment: https://sca.coffee/value-assessment

_Research checked 20 September 2026. This article does not certify an Origin Coffee Cambodia (OCC.) sample._