Coffee cupping is the clinical tasting method used by Q graders, quality graders certified by the Coffee Quality Institute. Tasters sniff the brew, then slurp it loudly from a deep, bouillon-style spoon so the coffee sprays across the palate and its vapors rise into the nose. Samples sit in eight-ounce glasses on a circular swiveling table, the senior taster goes first, and each mouthful is spat into a large spittoon placed between the taster’s legs to avoid caffeine overload. Scoring separates body, the tactile weight compared to whole versus skim milk, from taste, and draws a hard line between desirable acidity from organic acids and sourness from the acetic acid of over-fermented coffee.

The aroma vocabulary is where cupping turns forensic. Honeysuckle, jasmine, cocoa, caramel, and toast sit alongside hot tires and rubber bands, which are not considered a negative attribute, and ashy notes that simply report a dark roast. Wet fur, sweat, and leather point to badly handled dry processing, and medicinal Rio flavor signals a defect. Standardized cupping began in the late 19th century with Hills Brothers Coffee in San Francisco, which needed reliable quality control over large shipments.

• Behind each glass sit three trays: green beans, whole roasted beans, and fresh grounds, each tagged with lot, region, species, and crop year.
• Brass kettles keep water just below boiling and a grinder runs beside the table to grind right before tasting.
• Rubbery notes often come from phenolic compounds, found in species like Robusta used in Italian espresso blends.
• Tasters may call a coffee spicy only for sweet spices like clove, cinnamon, and allspice, never pepper or oregano.
• An earthy raw potato note and other earthy aromas are tied to soil, altitude, and microclimate.