Dark roast coffee is the result of a carefully controlled roasting process that extends beyond the second crack, reaching internal bean temperatures between 225°C and 230°C. This advanced stage of roasting significantly alters the chemical makeup of the beans, reducing their origin-specific characteristics and bringing forward the bold, smoky notes that dark roasts are known for.
As the beans roast, their color deepens to a dark brown or near-black shade. You’ll often notice a glossy, oily sheen on the surface—this is due to natural oils migrating outward, a signature trait of dark roast beans.
Key Insight from Roasting Experts:
At Rounton our roasters monitor time and temperature with precision. Over-roasting can result in burnt or ashy flavorus, while under-roasting at this level may not fully develop the signature dark roast profile. Our expert roasters use the latest techniques to bring you the best dark roast coffee beans straight to your home.
