Light Roast (light profile)
A light roast profile targets Agtron values of 70-95, stopping just after or at first crack. The bean surface is dry, matte, and light brown. Caffeine content is marginally higher than dark roast. Acidity is brightest; body is lightest. Best extraction: 90-96 degrees C water, slightly finer grind, 1:15-1:17 ratio. Common descriptors: lemon, peach, apricot, bergamot, floral, tea-like. African and Central American origins shine at light profiles.
Background & Context
Light roast (torréfaction légère) is a roast profile in which coffee beans are dropped shortly after first crack, typically at bean surface temperatures of 195–205°C — before oils migrate to the surface and before significant caramelisation of sugars has occurred. Light roast is the preferred profile in specialty coffee because it preserves the widest range of origin-specific aromatic compounds, retains the highest concentration of chlorogenic acids (coffee polyphenols), and allows the distinct character of the variety, processing method, and terroir to express in the cup without being masked by roasting-induced flavours. The SCA cupping protocol is conducted on light-roasted samples precisely because this profile is most diagnostic of inherent quality. Nordic countries (Norway, Sweden, Finland) have driven the light-roast trend internationally — Scandinavian specialty roasters have used extremely light profiles since the 2000s, creating the genre sometimes called "Nordic roast" or "filter roast".
Practical Use
Working with light-roasted coffee requires calibration adjustments across brewing parameters. Light roasts have higher bean density (less cellular disruption) and higher solubility in hot water — they often extract to target EY faster than medium roasts at identical grind settings. Espresso from light roasts typically needs coarser grind, longer yield (1:2.5–1:3), and sometimes higher temperature (93–96°C) compared to medium espresso. Filter brewing is generally where light roasts shine — their higher acidity, delicate florality, and complex fruit notes come through most clearly in 1:15–1:16 ratio pour-over at 93°C. The visual cue: light-roasted beans have no surface oil, are uniform in colour (tan to medium brown), and have a matte rather than shiny surface.
Related Terms
Related terms: Light roast, First crack, Roasting, Medium roast, Dark roast, Chlorogenic acid.