Do I need to roast the coffee beans after I buy them?

Coffee beans are an important raw material for making coffee. They need to be roasted to show the best flavor and aroma. So, when you buy fresh coffee beans, roasting is essential.

First of all, roasting coffee beans can improve their taste. Freshly picked coffee beans contain a lot of water and cannot reach their best condition before being processed. By roasting them in a high-temperature pot, the water will be removed, and a chemical reaction will occur in the process, causing the internal structure to change. In this way, the coffee beans can release more complex and rich aroma and taste.

Secondly, during the frying process, a caramelization reaction will also occur. Caramelization refers to the conversion of substances into substances such as tar or carbon powder under high temperature. For coffee, the caramelization reaction will reduce the bitter substances contained in it and increase some sweet ingredients. Therefore, roasting under proper control of heat and time can adjust and enhance the flavor of coffee.

In addition, roasting coffee beans can extend their shelf life. Fresh coffee beans contain high levels of moisture and oil, and are easily affected by mold and oxidation and deteriorate. Through the high temperature treatment during the frying process, the moisture will be removed and some of the oil will evaporate, thus reducing the environment for the growth of floating microorganisms. In this way, the coffee beans can be stored for a longer time and still maintain a good flavor when brewed.

In short, it is very important to fry fresh coffee beans after buying them. It can not only improve the taste and flavor, but also extend the shelf life. So, before enjoying delicious and fragrant coffee, please remember to fry your favorite coffee beans first.