Q Grader Learning: Recognizing Roast Defects and Choosing Sensory Tools

A disappointing cup does not always tell the whole story of the green coffee. In our Q Grader +plus class, we discussed how roasting mistakes can introduce burnt or muted flavors, hide sweetness and acidity, and make it harder to recognize a coffee’s potential.

That led to another practical question: which tasting method suits the task? Our classroom discussion compared cupping for defects and consistency with batch-brew tasting focused on describing flavor. Students tasted and recorded observations, connecting the choice of tool with the information they needed.

For a Q Grader, useful feedback depends on understanding what may have happened before the coffee reached the cup. This session connected sensory observations with decisions by producers, roasters, baristas and buyers, encouraging students to ask why a result tastes the way it does. Explore the original class photographs below.