Coffee beans away from light: exploring the wonderful connection between black magic and aroma

Coffee, as a popular drink, is not only loved for its unique aroma, but also for an interesting phenomenon: coffee beans avoid light. There is a wonderful and subtle connection between this magical black magic and the aroma emitted by coffee beans.

First, let's explore why coffee beans avoid light. In fact, not all colors can absorb and reflect light. The colors displayed on the surface of an object are formed by their absorption of certain specific wavelengths (colors) and reflection of other wavelengths (colors). For black objects, they can almost completely absorb all incident light and reflect very little or no visible light. Therefore, when observing a black object under sunlight or light, we see a "black hole" without any bright spots.

So why are coffee beans black? The reason is that they contain a large number of compounds and molecules with strong absorption capacity, such as polyphenols, aromatic compounds, etc. These compounds absorb most of the energy in the light, making the coffee beans appear dark black. In addition, coffee beans also contain a substance called "maltodextrin", which has high hygroscopicity and antioxidant properties, further enhancing the effect of coffee beans in shielding from light.

Next, let's look at why coffee beans emit a strong aroma. When we grind or brew coffee, the aroma molecules in it are released into the air and enter our sensory system through the nasal cavity. These aroma molecules are due to volatile compounds released during the processing. Volatile compounds refer to chemicals that easily change from liquid or solid to gaseous state and emit a specific aroma.

In summary, when exploring the wonderful connection between black magic and aroma, we can draw a conclusion: it is because coffee beans are protected from light that they become black, and because of their special ingredients and processing, they exude a rich and charming aroma. Both the protection from light and the aroma add a mysterious and attractive charm to coffee.