How do I identify body in coffee?

Body is often misunderstood as a flavor note, but it is strictly a physical sensation—a measure of mouthfeel. While flavor is detected by the olfactory system and taste buds, body is perceived through the trigeminal nerve and tactile receptors in the mouth. It is the result of the physical interaction between the liquid and your oral cavity. From a producer’s perspective, body is heavily influenced by the processing method. Natural-processed coffees, which dry with the fruit intact, often exhibit a heavier, more syrupy body due to the higher concentration of sugars and mucilage absorbed by the bean. Conversely, washed coffees tend to be cleaner and lighter in body. Variety also plays a critical role; for instance, Typica cultivars are frequently noted for a fuller, more rounded body compared to the sharper, more acidic profiles of Caturra. A common misconception is that dark roasts inherently possess more body. While roasting can develop melanoidins—complex compounds that contribute to viscosity—over-roasting can actually lead to a 'baked' or hollow sensation, stripping the coffee of its structural integrity. Ultimately, identifying body requires isolating the 'weight' of the liquid from its acidity or sweetness. When tasting, allow the coffee to coat your tongue; a heavy-bodied coffee will linger and provide a coating sensation, whereas a light-bodied coffee will dissipate quickly, leaving a clean, crisp finish.