The science of roasting: how are coffee beans roasted?

One of the most important components of a great coffee is the roasting of the beans. Roasting changes the color, flavor and aroma of the beans and thus determines the quality and character of the coffee. But how does the roasting of coffee beans actually work?

First of all, coffee beans are imported in green form and then roasted. Roasting takes place in a roaster that heats the beans at high temperatures, removing their water and carbon dioxide. During roasting, aromas and acids are formed, which influence the taste and aroma of the coffee.

There are different stages of roasting, each of which produces different properties. A light roast produces a mild and fruity taste, while a darker roast produces a stronger and bitter taste. A medium roast, also referred to as American Roast, is a popular choice for most fragrant lovers and produces a balanced flavor.

At Black Ops Coffee, we use a darker roast for our beans to achieve a strong and full-bodied flavor. Our beans are roasted in small batches to ensure that each coffee is of consistently high quality.

There is also an art and science that revolves around the roasting of coffee beans. Roasting profiles must be carefully monitored and adjusted to ensure that each coffee has the perfect roast. It is also important to carefully control the roasting process to ensure that the beans are not over- or under-roasted.

Black Ops Coffee hand roasting process

The hand roasting process, also known as pan roasting, is a traditional method of roasting coffee beans. This involves roasting the beans in a shallow pan over an open flame or on a hot plate. The pan is continuously tilted to ensure that the beans are roasted evenly.

Compared to drum roasting, the hand roasting process is very labor intensive and requires a lot of experience and tact. The roaster must constantly monitor the color and odor of the beans and adjust the roasting process accordingly. The hand roasting process also requires greater attention and concentration to ensure that the beans do not burn or roast unevenly.

One of the biggest advantages of the hand roasting process is that it allows very fine control over the roasting process. The roaster can very precisely control the temperature and the movement of the beans, thus precisely influencing the taste and aroma of the coffee. In addition, the hand roasting process can accentuate certain aromas and flavor nuances that may be lost in drum roasting.

Another advantage of the hand roasting process is that it is usually carried out in smaller batches. This allows the roaster to customize and optimize each batch to ensure that each cup of coffee reaches the highest quality standard. Small batches can also help beans stay fresher, as they are processed faster and have less time to oxidize.


The roasting of our coffee beans is a complex and fascinating science that affects the taste and aroma of the coffee. At Black Ops Coffee, we place great emphasis on the quality of our beans and ensure that each coffee has a perfect roast. Try our coffees and let us convince you of our rich and full-bodied taste!

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