What is cupping – how do roasters test coffee quality?

What is Cupping - How Do Roasters Test Coffee Quality?

What is Cupping? Purpose, Origin, and Why It's Standard in Specialty Coffee

Cupping is the standardized method to fairly compare coffee, test coffee quality, and identify defects. It originated in green coffee trading and is now core to the Specialty Coffee Association (SCA) standard for coffee tasting.

Cupping Setup: Equipment, Water, Grind Size, and Sample Preparation

Cups (200-250 ml), identical and preheated
Cupping spoons, scale (0.1 g), timer
Grinder, coarse filter grind, fresh grinding
Water: 93-96 °C, moderately mineralized
Dosage: 8.25 g per 150 ml (SCA cupping protocol)

Step-by-Step: How a Cupping Proceeds

Weigh beans, number, grind coarsely.
Smell dry aroma, sketch notes.
Pour hot water, steep for 4 minutes.
Break the crust, skim the surface.
From ~60-70 °C, taste: slurp, spit out, note.

Detailed Process: Breaking the Crust, Assessing Aroma, Slurping, and Spitting

Break the crust three times, nose close to the cup.
Carefully remove floating particles, keep cups full to the rim.
Assess aroma/flavor first, then acidity, body, sweetness.
Slurp loudly for maximum nebulization, then spit out.

Understanding the Score Sheet: SCA Score, Attributes, and Typical Notes

The cupping score sums 10 attributes (0-10): Aroma, Flavor, Aftertaste, Acidity, Body, Balance, Uniformity, Clean Cup, Sweetness, Overall. 80+ is considered Specialty. When evaluating coffees: clearly justify acidity, body, sweetness, and balance.

Identifying Defects: Off-Flavors, Roast Maturity, Fermentation, and Contamination

Baggy/Paper, old or improperly stored.
Phenolic/medicinal, often contamination.
Over-fermented: vinegar, yeast, solvent.
Roast defects: underdeveloped grassy; baked flat; Quaker peanut-like.

Cupping vs. Brew Tasting: Differences, Advantages, and When Each Method Makes Sense

Cupping compares coffees neutrally without brewing equipment; Brew Tasting tests recipes and extraction in everyday use. First, select coffee by cupping, then fine-tune recipes.

Practical Application in Roasteries: Sourcing, QC, and Batch Consistency in Daily Operations

In sourcing: sample roasts, scores, defect checks. In production: quality control at the roastery with production cuppings for batch consistency and release.

Common Mistakes in Home Cupping and How to Get Reproducible Results

Inconsistent grinder: clean, same grind size.
Water fluctuates: same temperature/recipes.
Incorrect ratio: strictly 8.25 g/150 ml.
Tasting too hot: patience until ~60 °C.
Too many samples: 3-5 are enough for clear notes.

Download Checklist: Cupping Workflow Prepared in 10 Minutes

Prepare workstation, glasses, spoons, scale, timer.
Weigh samples, number, grind coarsely.
Smell dry aroma, heat water to 93-96 °C.
Pour water, steep for 4 minutes, break crust, skim.
Slurp, evaluate, mark defects, save results.

FAQ

How exactly does cupping work?

Coarsely ground coffee is placed in cups, poured over with hot water, and extracted for a specific time. Then, the coffee is tasted by slurping with special spoons and evaluated based on criteria such as bitterness, acidity, body, and sweetness. At Wildkaffee, cupping is daily routine - as a sourcing tool during farm visits and for ongoing quality control.

What water temperature is used for cupping?

In practice, very hot water is used (just after boiling, typically around 93-96 °C). Consistency is most important: use the same temperature for all samples.

What is the SCA Cupping Score?

The SCA score is a standardized evaluation system that assesses attributes such as aroma, flavor, aftertaste, acidity, body, balance, sweetness, and clean cup. This allows for comparable classification of coffees.

How does cupping differ from normal coffee preparation?

Cupping is a standardized tasting method without brewing equipment, designed to compare coffees fairly. Unlike espresso/filter, it's less about "perfect enjoyment" and more about objective quality and defect assessment.

Further reading: SCA cupping form, water guides, and protocols for home cupping - ensuring your coffee cupping guide is reproducible.