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
| Criterion | French roast | Italian roast |
|---|---|---|
| Indicative Agtron score | 25–35 | < 25 |
| Bean colour | Very dark brown, shiny | Almost black, very shiny |
| Surface | Oily | Very oily |
| Dominant notes | Dark chocolate, burnt sugar, light smoke | Smoke, carbon, asphalt |
| Bitterness | Pronounced | Intense to extreme |
| Acidity | Almost absent | Absent |
| Origin flavour | Completely masked | Completely masked |
The Geography of Dark Roasting
The naming convention of "French roast" and "Italian roast" is a historical relic that no longer corresponds to the actual roasting practices of France or Italy, and understanding this helps explain why the terms are so confusingly used across the industry. In the vocabulary of American commercial coffee, which codified these names in the 19th and early 20th centuries, "French roast" referred to a very dark roast that American exporters associated (loosely and often inaccurately) with the preferences of Parisian café culture, where strong, dark chicory-blended coffee was indeed popular. "Italian roast" in the same vocabulary meant an even darker roast, associated with the espresso tradition of Southern Italy where the goal was maximum intensity and minimum acidity — though modern Italian specialty roasters would find both descriptions entirely unfamiliar to their current practice.
At the chemical level, both French and Italian roasts in the American commercial vocabulary take coffee well past second crack into a zone where the bean surface is oily, the cellular structure is visibly expanded (beans appear larger than before roasting due to gas-driven swelling), and a significant proportion of the original aromatic and acid compounds have been degraded or driven off. The cup profile is dominated by carbon, smoke, and the bitter-sweetness of advanced pyrolysis products — not by anything that could be described as "origin character" in the specialty sense. The primary distinction between French and Italian in this system is degree: Italian is typically darker and more carbonised than French, producing an even more intense, somewhat more bitter, and markedly smokier cup. In the SCA roast degree scale, French roast corresponds approximately to Agtron 25-35, while Italian roast falls below 25.
Practical Recommendations
If you enjoy dark roasted coffee and want to explore within that spectrum, the most useful distinction is between a dark roast that has been carefully developed — taken to second crack and then finished with control to prevent scorching — and one that is simply over-roasted through neglect or throughput pressure. The former can be genuinely enjoyable: dark chocolate, bittersweet caramel, and a clean, intense finish that pairs well with milk-based drinks. The latter tastes primarily of ash and carbon with a harsh, unclean bitterness that lingers unpleasantly. Ask your roaster about their specific development approach for dark roasts, and if you are buying commercially, the freshest possible dark roast is essential — the aromatic volatiles that give a well-crafted dark roast its character degrade even faster than those in a light roast, because the cell walls that once protected them have been ruptured by the extended roasting.