Why this matters for professionals

Cupping is the lingua franca of the specialty coffee industry. When a producer in Ethiopia sells a lot to a roaster in Berlin, both ends use the SCA Cupping Form to communicate quality. When a Q grader scores a coffee at 86, that number means the same thing whether the cup happens in Brazil, Japan, or California. Without the protocol, the entire pricing and sourcing infrastructure of specialty coffee collapses.

Beyond procurement, cupping is the discipline that builds a working palate. A barista who cups every week develops vocabulary, calibration, and the ability to diagnose roast and brewing issues directly from the cup. This article walks the SCA protocol step by step.

The SCA Standard

The SCA Cupping Protocol specifies precise parameters so that any two cuppers can replicate the same setup:

The Procedure

Setup (T-15 min). Weigh 8.25 g per cup. Five cups per sample. Position randomly to test consistency. Have spoons, cupping forms, rinse cups, and a spittoon ready.

Grind (T-5 min). Grind each sample individually, purging the grinder between samples with 2-3 g of the next sample. Grind directly into the cup.

Fragrance evaluation (T-3 min). Within 15 minutes of grinding, smell the dry grounds. Record the dry fragrance.

Pour (T-0). Pour 150 mL of 93°C water on each cup, ensuring all grounds are saturated. Note aroma immediately.

Steep (T+0 to T+4:00). Coffee steeps undisturbed for 4 minutes. A crust forms on top.

Break the crust (T+4:00). With your spoon, push gently into the crust three times while inhaling deeply. Aromatic compounds release. This is one of the most concentrated aromatic moments of the cup.

Skim (T+4:30). Remove the floating crust with two spoons, using one to push grounds aside and the other to lift. The cup is now ready to taste.

Tasting (T+8 to T+30). Sip a spoonful with vigorous slurping to aerate. Evaluate as the cup cools: hot, warm, room-temperature. The same coffee shows different attributes at different temperatures. Score each attribute on the SCA form.

The Score Sheet (10 Attributes)

Each attribute scores 0-10 (in increments of 0.25 above 6.0). The 10 attributes are: Fragrance/Aroma, Flavor, Aftertaste, Acidity, Body, Balance, Uniformity, Clean Cup, Sweetness, Overall. Sum yields a final score from 0 to 100 (defects subtracted). Specialty grade begins at 80+. Notable coffees score 85+; exceptional 87+; auction-grade 90+.

Calibration

A panel of cuppers tasting the same sample should arrive at scores within +/-1 point. If individual scores diverge more, the panel needs calibration. The SCA runs formal calibrations during certifications, but you can self-calibrate by tasting against published scores (Cup of Excellence auction results, Coffee Review). Cup the same coffee weekly; track your scores; look for drift.

Common Mistakes

• Wrong roast level. Cupping a dark roast hides defects and flattens character. Sample roast to Agtron 55-60.
• Loud slurping for show. Slurp to aerate, not to perform. Aerosolization is the goal.
• Skipping the warm and cool tastings. Acidity reveals at warm; sweetness at room temp. Score across temperatures.
• Cross-contaminating cups. Rinse spoons between samples in hot water.
• Scoring while distracted. A noisy room or strong scents (perfume, food) contaminate evaluations.
• Not using 5 cups per sample. Single-cup tasting misses taint detection — the uniformity score depends on multi-cup comparison.

Further Reading

The SCA Cupping Protocol document is freely available on the SCA website. The Coffee Quality Institute (CQI) Q Grader Program is the most rigorous formal training. Trish Rothgeb's books and the SCA Coffee Sensory and Cupping Foundation course are excellent starting points. Counter Culture's annual Cuppings and Educations resources are publicly available.