Green coffee beans refer to coffee beans that have not been roasted. It cannot be directly boiled, and the "essence" can be effectively extracted only after baking and grinding.

Coffee green beans are actually seeds obtained by removing the skin and flesh of coffee fruits after harvesting. From the appearance, these green beans are basically green, and the size of different varieties varies. Different varieties and processing methods can affect the final color of the green beans, and some may even turn yellow.

Compared to ripe coffee beans, green beans have a higher moisture content and are harder, and can be stored for months or even longer. Before sale, green beans are stored with their shells and the storage space is relatively spacious, which can ensure stable quality. However, over time, the moisture content in the raw beans will gradually decrease, and the color of the beans may gradually change from green to yellow.

The coffee trade in the world is based on raw coffee beans as commodities, not just the coffee we drink in our daily lives. So, most coffee consumers actually rarely come into contact with green beans, and are usually related to professions such as roasters, bean hunters, or green bean traders.