The discoloration process of roasting coffee beans-makes it easy for you to understand the changes of coffee beans

Many people think coffee beans are born dark brown. In fact, raw coffee beans are green or cyan, because they also contain a certain amount of water.

After the coffee fruit is processed and selected, it will be graded into sacks. And then, mostly by ship, dispersed around the world.

After the coffee beans are transported to the coffee factory, they are roasted by professional roasting machines. Without this process, the coffee beans are just a green crop, and more than 500 kinds of fragrance in the coffee beans are also awakened by roasting.

Coffee beans in the process of being roasted, a series of chemical changes will occur, the color of coffee beans will gradually change from light green to dark coffee, after 8-20 minutes of roasting, light green coffee beans will begin to gradually dehydrate, turn yellow.

The coffee beans will start to swell, doubling in size and becoming fluffy. After this series of processes, green coffee beans will begin to turn brown, which is common to us.

When the roasting reaches the roasting depth we need, we need to cool the coffee beans quickly by cold air so that we can stop roasting in time.

Coffee taste exquisite, in fact, more decisive factor lies in the roasting this link. The different cooking time decided by the roaster determines the taste of this coffee to a certain extent.

Coffee bean color change successful!