How to Cup Coffee by SCAA Standards

Whether you’re a roaster, importer, or barista trying to evaluate multiple coffees fairly, you need a consistent method—and the SCAA (Specialty Coffee Association of America) cupping protocol is the global gold standard. But what exactly does it involve? From water temperature to scoring sheets, here’s the complete, practical breakdown.

The SCAA’s official cupping method uses 8.25g coffee per 150ml water, ground to pass 70–75% through a US #20 sieve, brewed at 93°C (200°F), and scored using a detailed form assessing 10 attributes and subtracting defect penalties.

Cupping Equipment & Setup

To start, SCAA requires specific gear. Use only steel glass or ceramic cups/bowls (no mixing materials), 207–266ml in volume, 76–89mm in diameter, with any material lids. Every cup must match in material, size, and cleanliness—no combining glass and ceramic or using different capacities.

All tools—cups, spoons, grinders—must be odor-free and identical. Consistency is key to fair evaluations.

Coffee Sample Prep: Roast, Grind, and Dose

Use only coffee roasted 8–24 hours before cupping. Target a medium roast defined by: Agtron whole bean 58±1 / grinds 63±1, or SCAA roast color chart whole bean #55 / grinds #60. Roast time must be 8–12 minutes with no scorching or tipping.

Cool beans to room temp after roasting and store them unrefrigerated in sealed, opaque bags away from light.

For brewing, use a strict 8.25g coffee to 150ml water ratio. Calculate the exact coffee weight per cup based on your vessel’s capacity, with ±0.25g precision. Grind just before cupping; if uncovered, brew within 15 minutes of grinding. If covered, brew within 30 minutes. Grind size should allow 70–75% of grounds to pass a US #20 sieve. Always rinse your grinder with a small amount of the same coffee between samples to avoid cross-contamination.

Water Quality & Brewing Process

Use fresh, clean, odor-free water with TDS 125–175ppm. Do not reheat water—always use freshly heated water at 93°C (200°F), adjusting slightly for altitude.

Pour water to fully saturate grounds, filling each cup to the brim. Allow the coffee to steep for 3–5 minutes undisturbed.

How to Cup: Step-by-Step Evaluation Process

Start your sensory evaluation in this order:

1. Dry Fragrance: Smell the dry grounds before pouring water. Note aroma character (floral, fruity, nutty, etc.) and intensity.
2. Wet Aroma: After pouring water, smell the steaming crust for aroma development.
3. Crust Break: At 4 minutes, break the crust by stirring the grounds gently 3 times with a spoon. Keep your nose close to catch the burst of aromatics.
4. Wet Aroma (Again): The most intense aromas emerge right after breaking the crust—this is your key wet aroma assessment moment.
5. Skim Grounds: Remove floating grounds from the surface quickly for cleaner tasting.

Then taste in three phases:

1. First Sip (Hot): Focus on flavor and aftertaste. Let the coffee cool enough to sip safely without burning your mouth.
2. Second Sip (Warm): Evaluate acidity, body, and balance.
3. Third Sip (Room Temp): Assess uniformity, cleanliness, and sweetness.

Always record your impressions across these stages.

SCAA Cupping Score Sheet Explained

The official SCAA cupping form scores 3 samples (5 cups each) across 10 attributes:

• Fragrance/Aroma: Dry and wet aroma intensity and quality (with vertical strength marker).
• Flavor: The overall taste impression, including complexity.
• Aftertaste: How flavor lingers post-swallow.
• Acidity: Brightness and structure of acid sensations—not just intensity but quality.
• Body/Mouthfeel: The tactile weight and texture of the liquid.
• Sweetness: Perceived sweetness, benchmarked against a 2:15 sugar-water ratio.
• Balance: Harmony among flavor, acidity, and body.
• Clean Cup: Absence of off-flavors or taints.
• Uniformity: Consistency across all 5 cups—only deduct for inconsistency, not for being better.
• Overall: Your personal preference score.

Each attribute is scored from 6 (poor) to 10 (outstanding) in 0.25 increments. Each of the 5 cups gets its own column. Defects are also noted: minor (2 points/cup) or major (4 points/cup). If both occur in one cup, count it as major. Final score = total flavor points – total defect points.

Defects in Cupping: Identifying Taints & Faults

Defects fall into two categories:

• Taint (Minor): Unpleasant but drinkable—2 points per cup.
• Fault (Severe): Undrinkable or harsh—4 points per cup.

If one cup has a minor fault and another a major, score both as major (total: 8 points). Defects dramatically lower the final score and indicate processing or storage issues.

Understanding the Final Cupping Score

A coffee scoring 80 or above is considered Specialty Grade. The SCAA doesn’t officially define ranges, but expert Q graders often group results into these qualitative bands:

• Rare: Exceptionally unique, highly distinctive profiles, very scarce.
• Origin: Distinct enough to recognize among other coffees.
• Specialty: Generally high-quality with good balance, though not necessarily standout origin character.
• Non-Specialty: Shows clear defects due to processing, ripeness, or storage.

Frequently Asked Questions

What is the official SCAA coffee-to-water ratio for cupping?

The SCAA standard is 8.25g of coffee per 150ml of water. Calculate the exact coffee weight for your specific cup size based on that ratio, with an allowable margin of ±0.25g.

What grind size should I use for SCAA cupping?

Grind your coffee so that 70–75% of the particles pass through a US #20 sieve. This medium-fine grind ensures proper extraction during the 3–5 minute steep.

What water temperature is correct for SCAA cupping?

Use fresh water heated to 93°C (200°F). Adjust slightly for altitude, but never reheat water—always pour fresh.

How should I evaluate coffee aroma in the SCAA method?

Evaluate both dry aroma (before adding water) and wet aroma (after pouring water, especially after breaking the crust at 4 minutes). Note the fragrance’s quality, intensity, and aroma categories like floral, fruity, or nutty.

How is the final cupping score calculated?

Add up the scores for all 10 attributes per cup, then subtract any defect points (2 for minor/taint, 4 for major/fault). The maximum possible score is 100; 80+ is considered Specialty Grade.

What are considered defects in SCAA cupping?

Defects are off-flavors or aromas caused by issues like spoilage or poor processing. They’re divided into ‘taints’ (minor, 2 pts/cup) and ‘faults’ (severe, 4 pts/cup). Even one serious defect can lower a coffee’s grade significantly.

Recommended FrontStreet Coffees for SCAA Cupping

For practicing SCAA-standard cupping, try FrontStreet Coffee’s Ethiopia Guji Shakiso (notes of citrus, blueberry, and jasmine), Colombia Huila Popayan (red apple, caramel, and black tea), and Ethiopia Yirgacheffe Kochere (bergamot, stone fruit, and honey). These single origins highlight distinct profiles ideal for attribute scoring. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.