Roast profiling is the process of controlling how coffee beans are roasted to develop specific flavours. By adjusting heat, time, and roasting intensity, we shape everything from acidity and sweetness to body and bitterness.
As coffee roasts, it changes dramatically. Moisture reduces, acids develop, sugars begin to form and caramelise, and eventually, darker roasting creates deeper, bolder flavours. The longer the roast, the more the coffee shifts from its origin characteristics to flavours created during roasting.
At Redber Coffee Roastery, we focus on three core roast levels — medium, medium-dark, and dark — each suited to different tastes and brewing styles.!
Coffee Roast Levels
Medium Roast
Medium roasted beans are light to medium brown with no surface oil. They offer a balanced flavour, combining acidity, sweetness, and aroma, making them ideal for those who want to taste the natural characteristics of the coffee.
Medium-Dark Roast
Medium-dark roasts are richer in colour, with slight oil on the surface. They have a fuller body, reduced acidity, and more pronounced roasted flavours, often with deeper, slightly spicy notes.
Dark Roast
Dark roasted beans are dark brown to almost black, with visible oils. These coffees have a bold, full-bodied profile with low acidity and more bitter, smoky flavours. Much of the origin character is replaced by roasting intensity..
How Roast Level Affects Coffee
Lighter roasts highlight origin flavours and acidity Darker roasts emphasise body, bitterness, and roasted notes Oils appear on the surface as roasting progresses Beans expand and lose weight as they roast
The best roast level depends on your taste and how you brew your coffee. Medium roasts are often preferred for balance, while darker roasts suit those who enjoy stronger, richer flavours. Many people even switch throughout the day — lighter in the morning, darker later on.
