Coffee bean roasting process: from raw beans to aroma, presenting the delicious coffee step by step!

Coffee bean roasting process: from green beans to aroma

Coffee is a must-have drink for many people every morning. Its aroma and taste are intoxicating. However, few people know the roasting process behind coffee. From raw beans to fragrant coffee, it needs to go through a series of delicate and complex steps. This article will introduce you to this process in detail.

1. Harvesting and processing

First of all, to make delicious coffee, you need to choose high-quality green beans. These green beans usually come from high altitude areas and are carefully selected and processed.

During the picking stage, farmers will manually select coffee cherries that are moderately ripe, good in color, and without any defects. They are then sent to the processing plant for processing.

In the processing plant, peeling, fermentation, washing and other steps are performed to remove the pulp and make the interior clean and tidy. These steps are crucial to ensure the quality of the final product.

2. Preparation before baking

Before the coffee beans enter the roaster, some preparation work needs to be done. The first is to remove impurities and residues from the coffee beans. This can be done by screening and washing.

Next, in order to maintain the freshness of the coffee beans and preserve their unique aroma, the green beans are usually stored in sealed containers and avoid exposure to direct sunlight or humid environments.

3. Baking process

Now it’s time for the roasting to begin! Roasting is the critical step necessary to transform green beans into edible coffee.

First, the processed and prepared green beans are placed in a preheated roaster. Then, the machine is started and the temperature, time, and other parameters are controlled to achieve the desired results.

Over time, you will see the coffee beans gradually change color and emit a rich and attractive aroma. This process is called "first climb". It marks the beginning of the coffee entering different stages and releasing different flavors and taste characteristics.

Roasters need to control the roasting process based on the characteristics of the coffee beans and the desired taste. They will carefully observe the color, smell and sound of the coffee beans to determine when to stop roasting.

4. Cooling and storage

Once the coffee has reached the desired roast, it needs to be cooled quickly to prevent further heating. This can be done by pouring the beans onto a metal tray and subjecting it to a fan or other cooling device.

Once cooled, the coffee beans are ready to be stored. To preserve their freshness and aroma, they should be placed in an airtight container in a dry, dark environment at a suitable temperature.

5. Grinding and brewing

The final step is to grind and brew the carefully processed and preserved coffee beans into a drink, a process usually done by the consumer themselves.

Choosing the right grind size is important for different types of brewing methods. For immersion brewing, such as a French press, a coarser grind size provides a better immersion effect. For drip brewing, such as a coffee machine, a finer grind size is more suitable.

Once you have completed the grinding and brewing process, you can enjoy the coffee from green beans to the aroma!

in conclusion

Coffee beans go through a complex and delicate process to become the delicious drink we drink every day. From picking and handling, preparation, roasting, cooling and storage to the final grinding and brewing, each step has an important impact on the quality of the final product.

By understanding this process and choosing high-quality coffee beans, you can enjoy a cup of delicious coffee with rich taste and aroma at home.