The taste of coffee comes from roasting

How did the fact that so many kinds of coffee come about? If you are a beginner of professional coffee, I believe you will be troubled by the names of various roasting levels of coffee. Yes, the diversity of coffee comes from roasting. For example, the names of coffee, such as city,fullcity,French,Espresso, are due to differences in the roaster used and the region where they are produced. Even if the color of the roasted coffee beans looks the same, coffee may have completely different flavors, regardless of the type of coffee beans selected, the baking heat and the roasting side is the length of time for ligularia roasting. Many reasons are the primary role of the final coffee flavor, roasting can be said to be a great knowledge in the scale of coffee.

In the process of roasting, coffee beans will undergo a series of complex chemical changes one after another. the whole roasting process will take about 20 minutes to half an hour, and all the way through about 15 minutes of baking. the green raw coffee beans will disappear in this pattern and burst like popcorn, and the whole coffee bean will expand more than twice as much. And show a light brown after stir-frying, and then in accordance with the differences in the types of coffee beans and the required roasting level, further increase the roasting time, in this pattern, the color of coffee beans will be changed to a variety of different shades of brown. After the final baking is completed, it can be cooled rapidly with cold air or directly cooled by spraying water, and the baking procedure can be completed.

Coffee beans after roasting are mainly divided into four categories, which are shallow, medium, deep and extra-deep. Lightly fried coffee beans are light brown, most of them have a strong flavor, and the brewed coffee has a high acidity, but the mellowness may not be as good as implied. The medium-fried coffee beans are very mellow, but they can also retain most of the acidity. The deep-fried coffee beans are dark brown, and the acidity in the coffee is replaced by a light bitter taste, sometimes with a spicy taste. The deeply fried beans are black and have a bitter taste of carbon ash, but the relative mellow taste is not so thick.