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Jones Coffee Roasters > Coffee College > Roasting
Jones Roastmaster Rafael

Roasting

The roasting process causes a complex series of chemical changes that unlock the flavor of our fine beans, adding sweetness by caramelizing the natural sugars.

Over a period of about 15 minutes under heat, the green coffee bean loses moisture, turns yellow, and then “cracks.” As it cracks, the bean nearly doubles in size, and begins to assume a light tan color. Once this stage is reached, the heat source is turned down, and the coffee rapidly darkens in color. When the desired degree of roast has been achieved, air-cooling stops the process.
KNOW YOUR ROAST LEVELS
The way a coffee is roasted has a big effect on acidity levels and overall taste.

ROAST COLOR TASTE
Light Cinnamon color Intense aromas with crisp, lively acidity and body
Medium Light-brown color Full in body yet with most of its acidity
Dark Dark brown Replaces acidity with a slight bitterness that creates a more pungent flavor
Very Dark Dark brown oily beans A primary pronounced carbony bitterness with a decrease in body
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