Coffee Sensory Science

How people perceive coffee through taste, smell, touch and integrated flavour perception.

Sensory perception

Coffee evaluation combines signals from taste, smell and mouthfeel with memory, expectation and context. A tasting note is therefore a report of perception, not a chemical inventory.

Taste

Basic taste sensations include sweetness, sourness, bitterness, saltiness and umami. Coffee can stimulate several of these, with sweetness and acidity often important in describing balance.

Smell and aroma

Volatile compounds reach the olfactory system through the nose and retronasally while drinking. This is why aroma contributes so strongly to what people call flavour.

Mouthfeel

Body, astringency, viscosity, texture and temperature contribute to the physical sensation of a coffee. Mouthfeel is distinct from aroma and basic taste but interacts with both.

Context and bias

Expectation, serving temperature, presentation and previous experience can influence perception. Controlled tasting attempts to reduce unwanted sources of bias.

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Coffee Knowledge presents technical subjects as an educational reference. Terminology, grading systems and production practices can vary by country, producer, equipment and commercial context.