Difference between French and Italian roast?

French roast and Italian roast are the two darkest levels on the standard roasting scale. French roast (approximately Agtron 25–35) sits just past second crack — beans are dark, slightly oily and present notes of dark chocolate and burnt sugar. Italian roast (Agtron 15–25) pushes the roast further — beans are very oily, almost black, with dominant notes of smoke, carbon and intense bitterness. In both cases, roast character has entirely overshadowed origin flavour.

The roast scale can be objectively measured with an Agtron colorimeter, which assigns a score from 0 (total black) to 100 (green bean) based on the infrared reflectance of ground coffee. Light roasts fall between 60 and 80 Agtron, mediums between 45 and 65, medium-dark between 35 and 50, French between 25 and 35, and Italian below 25. These names — 'French', 'Italian', 'City', 'Vienna' — are 19th-century conventions that no longer correspond to any contemporary geographic reality: modern Italian specialty roasters roast most of their coffees at a medium level, not 'Italian'.

Confusion is compounded by varying standards across sources: in North America, 'French roast' generally designates a very dark level; in Europe, some use 'French' for a slightly less dark level than 'Italian'. Modern professionals prefer to use Agtron scores directly or describe the physical phenomena observed (end of second crack, surface oil) rather than ambiguous geographic labels.

From a sensory standpoint, the main difference between French and Italian is one of degree: French still presents some caramelised sugar and dark chocolate notes, with pronounced but tolerable bitterness; Italian is dominated by carbonisation, smoke and hot asphalt notes — a bitterness some find too intense but which is traditionally associated with American drip coffee or very short traditional Italian espresso. A counter-intuitive fact: although dark roast is commonly associated with 'high caffeine', dark roasting slightly degrades caffeine — a light roast contains marginally more caffeine per gram of coffee than the same bean roasted dark.

French roast vs Italian roast