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providers describe the written exam as 55 questions in 60 minutes with an 80% pass mark; the SCA's public pages do not publish this format.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.

Last updated: October 2026

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

TopicRule
Superseded documentsSCA Cupping Protocol (2004 and later) plus heritage ratio, water, grind, roast, room, spoon, and table standards
Cupping roastGround L* 26–29; about Agtron/SCA tile #65; Agtron Gourmet reading 63 (about 58 whole bean)
Roasting problemsToo fast (excessive heating rate) or too slow (insufficient, "baked"); repeat the batch
Cooling and restAir-cool without quenching; store airtight at about 20°C; rest 8–24 hours
CupsTempered glass or ceramic, 200–350 mL, top diameter 75–90 mm, all identical
Dose8.25 g per 150 mL of cup capacity; each cup weighed separately; ±0.2 g
GrindEach cup separately; 70–75% passing US No. 20 (850 µm); purge with new sample
Cups per sampleAffective: 5; Descriptive: 3–5, or batch brew at 55–60 g per liter
Water temperature93 ± 3°C, poured to the rim
CrustUnbroken 3–5 minutes; break by stirring about 3 times while sniffing
LiquoringStart at about 70°C; at least 3 rounds as the brew cools below body temperature
SessionUsually 3–6 coffees, maximum 6; tables at least 0.90 m² for six people
Cupping waterNo chlorine; calcium hardness 50–175 ppm; alkalinity at or near 40–70 ppm (as CaCO3); pH 6–8
HygieneRinse spoon in hot water before every dip; sanitary modified protocol available

Fact sheet: Descriptive Assessment (SCA-103)

TopicRule
First stepEstimate and record roast level visually, when applicable
Intensity15-point scales for fragrance, aroma, flavor, aftertaste, acidity, sweetness, mouthfeel; total section intensity; nearest integer recorded
ChangesSecond mark plus arrow; do not erase
Orthonasal CATAUp to 5 for fragrance and aroma combined
Retronasal CATAUp to 5, plus up to 2 main tastes (salty, sour, sweet, bitter, umami)
Mouthfeel CATAUp to 2 of rough, oily, smooth, mouth-drying, metallic
Free descriptorsFor acidity and sweetness; for precise notes; for uncategorized notes
Taste referencesSalty 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)

TopicRule
SectionsFragrance, aroma, flavor, aftertaste, acidity, sweetness, mouthfeel, overall
Scale1 extremely low … 5 neither high nor low … 9 extremely high
ScoreS=0.65625∑h+52.75−2u−4dS = 0.65625\sum h + 52.75 - 2u - 4d, rounded to the nearest 0.25
AnchorsAll 9s give 100; all 5s give 79; all 6s give 84.25
DefectsPotato, moldy, phenolic only; mark cups and type, or it does not count
UniformityQualitative differences only; defective cups are also non-uniform unless all cups are evenly defective
PreferenceOwn or known market preference; not influenced by other cuppers

Fact sheet: Physical and Extrinsic

TopicRule
Physical sample350 g green coffee
Physical form fieldsColor (8 options from blue-green to brownish), moisture, screen sizes #10–#23 in grams and percent, Category 1 and 2 defects
Category 1 ratiosFull black 1, full sour 1, dried cherry 1, fungus damage 1, foreign matter 1, severe insect damage 5
Category 2 ratiosPartial black 3, partial sour 3; parchment, floater, immature/unripe, withered, shell, broken/chipped/cut, hull/husk 5; slight insect damage 10
Extrinsic categoriesFarming, Processing, Trading, Certifications, Other
Process by last layerFruit-dried, mucilage-dried, parchment-dried, seed-dried

Calculation drills

  1. Dose: a 220 mL cup needs 220 × 0.055 = 12.10 g (acceptable 11.90–12.30 g).
  2. 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.
  3. Defect equivalents: 12 partial blacks ÷ 3 = 4 full defects; 7 slight insect-damaged beans ÷ 10 = 0.7.
  4. Solutions: 0.52% sucrose = 5.2 g per liter.

A four-week study method

WeekFocusMethod
1SCA-102Rewrite the mechanics table from memory; time a mock setup
2SCA-103 and SCA-104Fill both forms on four coffees; do score calculations by hand and check with the calculator
3Physical and ExtrinsicGrade a 350 g sample; complete Extrinsic forms from offer sheets
4Mixed reviewAnswer 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.
Test Your Knowledge

What does the SCA say the Q Grader written exam focuses on?

A

Mainly the CVA, plus cupping procedures including setup

B

Primarily coffee history, producing-country statistics, and global trade volumes

C

Primarily brewing methods for cafés

D

Primarily the heritage 100-point cupping form

Test Your Knowledge

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?

A

87.00

B

85.00

C

83.00

D

81.00

Test Your Knowledge

How many full defect equivalents do 7 slightly insect-damaged beans represent on the CVA Physical Form?

A

1.4

B

2.33

C

0.7

D

7.0

Test Your Knowledge

Which set of numbers matches SCA-102 cupping mechanics?

A

Water at 100°C, crust broken at 4:00 exactly, liquoring at 85°C

B

Water at 93 ± 3°C, crust unbroken 3–5 minutes, liquoring from about 70°C

C

Water at 88°C, crust broken after 8 minutes, liquoring only at room temperature

D

Water at 90°C, no crust break, one liquoring round

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