16.3 Written Exam Preparation: CVA & Cupping Procedures Review
Key Takeaways
The SCA says the written exam focuses primarily on the CVA and covers cupping procedures, including setup, in detail.
The SCA's reading list is the CVA Protocol, Standards SCA-102, SCA-103, and SCA-104, and the CVA Theory video series.
Authorized providers describe the written exam as 55 questions in 60 minutes with an 80% pass mark; the SCA's public pages do not publish this format.
Core SCA-102 numbers include 8.25 g per 150 mL, ±0.2 g, 200–350 mL cups, 93 ± 3°C water, a 3–5 minute crust, and liquoring from about 70°C.
Core scoring rules include 15-point intensity scales, 1–9 affective ratings, the 0.65625 × sum + 52.75 formula, and −2 per non-uniform and −4 per defective cup.
The written exam is the only non-practical assessment in the Q Grader course. The SCA says it focuses primarily on the Coffee Value Assessment, and that cupping procedures, including setup, are covered in detail. The recommended reading is the CVA Protocol, SCA-102, SCA-103, and SCA-104, and the CVA Theory video series. The SCA also suggests downloading the forms and practicing the Physical, Descriptive, Affective, and Extrinsic Assessments at work.
The SCA's public pages do not state the number of questions or the pass mark. Authorized providers describe the exam as 55 questions in 60 minutes with an 80% pass mark, and at least one provider allows three attempts on it. Confirm the details with your instructor.
Fact sheet: SCA-102 sample preparation and mechanics
| Topic | Rule |
|---|---|
| Superseded documents | SCA Cupping Protocol (2004 and later) plus heritage ratio, water, grind, roast, room, spoon, and table standards |
| Cupping roast | Ground L* 26–29; about Agtron/SCA tile #65; Agtron Gourmet reading 63 (about 58 whole bean) |
| Roasting problems | Too fast (excessive heating rate) or too slow (insufficient, "baked"); repeat the batch |
| Cooling and rest | Air-cool without quenching; store airtight at about 20°C; rest 8–24 hours |
| Cups | Tempered glass or ceramic, 200–350 mL, top diameter 75–90 mm, all identical |
| Dose | 8.25 g per 150 mL of cup capacity; each cup weighed separately; ±0.2 g |
| Grind | Each cup separately; 70–75% passing US No. 20 (850 µm); purge with new sample |
| Cups per sample | Affective: 5; Descriptive: 3–5, or batch brew at 55–60 g per liter |
| Water temperature | 93 ± 3°C, poured to the rim |
| Crust | Unbroken 3–5 minutes; break by stirring about 3 times while sniffing |
| Liquoring | Start at about 70°C; at least 3 rounds as the brew cools below body temperature |
| Session | Usually 3–6 coffees, maximum 6; tables at least 0.90 m² for six people |
| Cupping water | No chlorine; calcium hardness 50–175 ppm; alkalinity at or near 40–70 ppm (as CaCO3); pH 6–8 |
| Hygiene | Rinse spoon in hot water before every dip; sanitary modified protocol available |
Fact sheet: Descriptive Assessment (SCA-103)
| Topic | Rule |
|---|---|
| First step | Estimate and record roast level visually, when applicable |
| Intensity | 15-point scales for fragrance, aroma, flavor, aftertaste, acidity, sweetness, mouthfeel; total section intensity; nearest integer recorded |
| Changes | Second mark plus arrow; do not erase |
| Orthonasal CATA | Up to 5 for fragrance and aroma combined |
| Retronasal CATA | Up to 5, plus up to 2 main tastes (salty, sour, sweet, bitter, umami) |
| Mouthfeel CATA | Up to 2 of rough, oily, smooth, mouth-drying, metallic |
| Free descriptors | For acidity and sweetness; for precise notes; for uncategorized notes |
| Taste references | Salty 0.20% NaCl; sour 0.04% citric; sweet 0.52% sucrose; bitter dark roast about Agtron 35; umami 0.10% MSG |
Fact sheet: Affective Assessment (SCA-104)
| Topic | Rule |
|---|---|
| Sections | Fragrance, aroma, flavor, aftertaste, acidity, sweetness, mouthfeel, overall |
| Scale | 1 extremely low … 5 neither high nor low … 9 extremely high |
| Score | , rounded to the nearest 0.25 |
| Anchors | All 9s give 100; all 5s give 79; all 6s give 84.25 |
| Defects | Potato, moldy, phenolic only; mark cups and type, or it does not count |
| Uniformity | Qualitative differences only; defective cups are also non-uniform unless all cups are evenly defective |
| Preference | Own or known market preference; not influenced by other cuppers |
Fact sheet: Physical and Extrinsic
| Topic | Rule |
|---|---|
| Physical sample | 350 g green coffee |
| Physical form fields | Color (8 options from blue-green to brownish), moisture, screen sizes #10–#23 in grams and percent, Category 1 and 2 defects |
| Category 1 ratios | Full black 1, full sour 1, dried cherry 1, fungus damage 1, foreign matter 1, severe insect damage 5 |
| Category 2 ratios | Partial black 3, partial sour 3; parchment, floater, immature/unripe, withered, shell, broken/chipped/cut, hull/husk 5; slight insect damage 10 |
| Extrinsic categories | Farming, Processing, Trading, Certifications, Other |
| Process by last layer | Fruit-dried, mucilage-dried, parchment-dried, seed-dried |
Calculation drills
- Dose: a 220 mL cup needs 220 × 0.055 = 12.10 g (acceptable 11.90–12.30 g).
- Score: ratings summing to 52 give 87.00; with one non-uniform cup, 85.00; with one defective cup that is also non-uniform, 81.00.
- Defect equivalents: 12 partial blacks ÷ 3 = 4 full defects; 7 slight insect-damaged beans ÷ 10 = 0.7.
- Solutions: 0.52% sucrose = 5.2 g per liter.
A four-week study method
| Week | Focus | Method |
|---|---|---|
| 1 | SCA-102 | Rewrite the mechanics table from memory; time a mock setup |
| 2 | SCA-103 and SCA-104 | Fill both forms on four coffees; do score calculations by hand and check with the calculator |
| 3 | Physical and Extrinsic | Grade a 350 g sample; complete Extrinsic forms from offer sheets |
| 4 | Mixed review | Answer practice questions under a 60-minute timer; revisit weak tables |
Traps to avoid
- Using heritage numbers: 10 attributes out of 10, a 6.00–9.75 scale, taint ×2 and fault ×4, or a 4-minute break as a rule.
- Treating intensity as quality.
- Forgetting that the dose is per 150 mL of cup capacity, not a fixed 8.25 g.
- Assuming any off-flavor is a defect; only potato, moldy, and phenolic count.
What does the SCA say the Q Grader written exam focuses on?
Mainly the CVA, plus cupping procedures including setup
Primarily coffee history, producing-country statistics, and global trade volumes
Primarily brewing methods for cafés
Primarily the heritage 100-point cupping form
A cupper's affective ratings sum to 52. One cup is marked defective for phenolic flavor and therefore also non-uniform. What is the final cupping score?
87.00
85.00
83.00
81.00
How many full defect equivalents do 7 slightly insect-damaged beans represent on the CVA Physical Form?
1.4
2.33
0.7
7.0
Which set of numbers matches SCA-102 cupping mechanics?
Water at 100°C, crust broken at 4:00 exactly, liquoring at 85°C
Water at 93 ± 3°C, crust unbroken 3–5 minutes, liquoring from about 70°C
Water at 88°C, crust broken after 8 minutes, liquoring only at room temperature
Water at 90°C, no crust break, one liquoring round
Sections you finish are checked off in the contents.
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