Coffee bean oil seepage: Uncovering the mystery of coffee aroma!

The aroma of coffee has always been one of people's favorite flavors. This unique aroma mainly comes from the exudation of oil in coffee beans.

First, we need to understand how the oil in coffee beans seeps out. When coffee beans go through the roasting process, the cell walls rich in oil inside are opened, allowing the oil to gradually release to the surface of the beans. This process usually occurs at high temperatures, and different degrees and times of roasting will have different effects on the aroma.

Secondly, we need to understand why the oils in coffee beans can bring such a rich aroma. In fact, coffee beans contain a variety of compounds, including phenols, ketones, esters and other ingredients. When these compounds come into contact with air, they react and produce various aromatic substances. The most important and common of these is the aromatic group composed of volatile compounds.

Finally, while enjoying the rich aroma of coffee, you should also be aware that the oil in the coffee beans will also deteriorate due to oxidation. When the coffee beans are exposed to the air, the oil will gradually oxidize and produce a rancid taste. Therefore, when storing coffee beans, try to avoid exposing them to the air and choose a well-sealed container.

In short, the aroma of coffee mainly comes from the oil exudation from coffee beans. These oils react with air and produce various aromatic substances. However, while enjoying the rich and delicious taste, we must also pay attention to maintaining its freshness.