How does the SCA coffee grading system work?
The SCA coffee grading system evaluates green coffee through a two-part process: physical inspection and sensory analysis. Graders check for defects like quakers or insect damage, then perform a cupping session to score the coffee on attributes like aroma, acidity, body, and balance. A score of 80 or higher is required to achieve the specialty grade designation.
The Specialty Coffee Association (SCA) grading system is the global benchmark for quality control in the coffee industry. It provides a standardized language that allows producers, exporters, and roasters to communicate the value of a coffee lot. The process begins with a physical inspection of a 350-gram sample of green coffee. Graders look for primary defects—such as full black beans, sour beans, or foreign matter—and secondary defects, like broken beans or insect damage. The number and type of these defects determine the grade of the coffee.
Once the physical inspection is complete, the coffee moves to the sensory evaluation phase, known as cupping. This is a highly ritualized process where the coffee is roasted to a specific color, ground, and brewed under controlled conditions. A panel of certified Q Graders or sensory judges evaluates the coffee based on a standardized cupping form. They score the coffee on ten attributes: fragrance/aroma, flavor, aftertaste, acidity, body, balance, uniformity, clean cup, sweetness, and overall impression.
Each attribute is scored on a scale of 6 to 10. These scores are then tallied to produce a final cup score. A score of 80 to 84.99 is considered 'Very Good,' 85 to 89.99 is 'Excellent,' and 90 to 100 is 'Outstanding.' This score is critical for the market value of the coffee; higher scores command significantly higher prices at auction and in direct trade relationships.
This system is essential for maintaining consistency and quality across the global supply chain. It helps producers identify areas for improvement in their farming or processing techniques and allows roasters to make informed purchasing decisions. For the consumer, the SCA grading system acts as a guarantee of quality, ensuring that the coffee you buy has been vetted by professionals who are trained to detect even the most subtle nuances in flavor and quality. Understanding this system helps demystify the labels on your coffee bag and highlights the immense effort required to produce a truly exceptional cup.
- · https://sca.coffee/research/coffee-standards
- · https://www.coffeeinstitute.org/our-work/q-grading/