How to Cup Coffee According to SCAA Standards

If you’ve ever wondered how professional coffee tasters evaluate beans consistently around the world, the answer lies in standardized cupping protocols—most notably those set by the Specialty Coffee Association of America (SCAA). But what exactly defines a proper SCAA cupping session? From roast level to grind size, timing to water temperature, every variable is carefully controlled to ensure fair, repeatable assessments of coffee quality.

The SCAA standard requires a medium roast—specifically around SCAA Roast Color #55—and mandates that cupping occur within 8 to 24 hours post-roast, with grinding done no more than 15 minutes before cupping, or up to 30 minutes if covered.

What Is SCAA Standard Coffee Cupping?

SCAA cupping is a standardized method used by coffee professionals to evaluate the aroma, flavor, aftertaste, acidity, body, balance, and overall quality of a coffee. It ensures consistency so that coffees can be fairly compared across regions, roasters, and batches. This method is the backbone of green coffee buying, quality control, and cupping competitions worldwide.

Roast Level and Roast Timing

For SCAA cupping, the coffee must be roasted to a medium level, which corresponds to SCAA Roast Color #55 on the SCAA Roast Color Tile. The roast duration should last between 8 to 12 minutes. Avoid over-roasting to the point of scorching or developing baked (baked = flat, doughy) flavors. After roasting, beans must be cooled quickly and stored in an airtight container away from light and heat. They should rest for at least 8 hours post-roast, but cupping must occur within 24 hours of roasting. That means if your roast finishes at 12:00 noon, cupping should take place between 8:00 PM the same day and 12:00 noon the next day.

Grinding and Freshness Window

Grind the coffee just before cupping—ideally within 15 minutes, though you may wait up to 30 minutes if the grounds are covered. If waiting 30 minutes, always use a lid. The target grind size is such that 70% to 75% of the particles pass through a U.S. Standard Size 20 sieve. For each coffee being evaluated, prepare 6 cups of equal weight: one for rinsing the cupping spoon, and five for actual cupping. Arrange these in sets of five per coffee to assess uniformity.

Brew Parameters: Dose, Water, Time, and Temperature

The SCAA defines the optimal cupping brew as using 8.25 grams of ground coffee per 150 milliliters (5 fluid ounces) of water heated to 93°C (200°F). Let the coffee brew for 3 to 5 minutes, with 4 minutes being the standard. Adjust coffee dose proportionally if using different cup volumes—for example, for 180 ml cups, use approximately 9.9 grams (rounded to 10 grams) of coffee. After brewing, break the crust (the layer of grounds on top) and skim off the foam and floating particles. Allow the coffee to cool down to around 71°C (160°F) before beginning the sensory evaluation by slurping.

Why These Specifications Matter

These exact parameters—roast level, grind size, dose, water temperature, brew time, and resting period—are scientifically and sensorially calibrated to highlight the inherent qualities of the coffee without masking them with over-extraction, under-extraction, or roast defects. Consistency in these variables allows cuppers to reliably assess and compare coffees on their own merits, making SCAA cupping the global professional benchmark.

Frequently Asked Questions

What roast level is required for SCAA cupping?

The SCAA requires a medium roast, specifically matching color standard #55 on the SCAA Roast Color Tile. This typically represents a medium roast profile, neither too light nor too dark, to best evaluate the coffee’s intrinsic qualities.

How long after roasting can you cup coffee according to SCAA?

Coffee should be cupped between 8 and 24 hours after roasting. It must rest at least 8 hours post-roast but must be tasted within a maximum of 24 hours. For example, coffee roasted at noon can be cupped from 8 PM the same day to noon the next day.

What is the correct grind size for SCAA cupping?

The grind should be fine enough that 70% to 75% of the particles pass through a U.S. Standard Size 20 sieve. This equates roughly to a medium-fine grind suited for pour-over, ensuring proper extraction during the cupping process.

How much coffee and water are used in SCAA cupping?

The standard is 8.25 grams of coffee per 150 ml of water at 93°C. For larger cups (e.g., 180 ml), adjust to around 9.9 or 10 grams. Brew time is 3 to 5 minutes, usually 4 minutes.

When should you grind coffee for SCAA cupping?

Grind the coffee no more than 15 minutes before cupping. If necessary, you may wait up to 30 minutes but must cover the grounds to preserve freshness and prevent oxidation.

What temperature should SCAA cupping coffee cool to before tasting?

After brewing, let the coffee cool to around 71°C (160°F) before breaking the crust and beginning the sensory evaluation by slurping.

Recommended FrontStreet Beans for SCAA Cupping

For SCAA-standard cupping, try FrontStreet Coffee’s Brazil Yirgacheffe-like Typica from the Xiladuo region, offering a balanced, medium-bodied cup with mild acidity and sweet nutty tones. Also suitable is the Colombia Sidra from Finca La Línea, with complex fruitiness from double anaerobic processing—great for exploring cupping clarity. Finally, the Ethiopia Gedeb Yirgacheffe offers bright citrus and floral notes typical of high-elevation washed coffees. All three showcase distinct profiles ideal for professional evaluation. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.