Why are the coffee beans oiled? is the coffee oily because the beans are not fresh?

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We usually see greasy coffee beans. Why is that? Why do coffee beans produce oil? I'll tell you about the front street coffee!

The oil from the coffee beans means the coffee beans are not fresh enough. " But Qianjie Coffee tells you that this is not the case, which makes most people's concept of coffee incorrect, thinking that the reason for the oil is that the coffee beans have been kept for too long, ignoring other more important factors. In fact, there is no absolute relationship between the oil output of coffee beans and the long-term storage of coffee beans. Although long-term exposure does increase the amount of oil produced, the greatest impact is the degree of baking and the way of baking.

The important factor of [coffee oil]-- coffee roasting degree

When roasting coffee beans, the coffee beans will gradually expand and crack, so that the oil ingredients contained in the coffee beans themselves gradually emerge to the surface, making the surface glossy, and the more heavily the roasting is, the more obvious the situation will be!

Therefore, generally speaking, light-roasted coffee beans are almost not easy to produce glossy light, so do not use the oil condition to judge the freshness of light-roasted coffee beans. as for coffee beans from medium baking to deep baking, because the coffee beans are roasted for a long time and the degree of expansion is obvious, the carbon dioxide and other gases and oils of the coffee beans are easily discharged from the coffee beans themselves, resulting in the coffee beans being full of oil within a few days. But this does not mean that the coffee beans are not fresh, it is just the result of baking!

If you really want to know the freshness of coffee beans, the most recommended is to buy high-quality boutique coffee bean stores, the packaging will be marked with the roast date of coffee beans, and when you have further questions, you can also directly ask the store coffee beans, roasting methods and cooking suggestions, communicate with each other and grow.

The "oil" of coffee beans is directly related to roasting; there was no so-called "roasting" in the early days of coffee discovery. for a whole thousand years, coffee was directly picked, washed, and boiled into soup to drink. What is the atmosphere, mood, and romance of this cooking method? there is only one reason why coffee can spread-"caffeine", which is the original reason why coffee will be discovered! Although caffeine keeps the coffee soup from being discarded. However, coffee soup has no fatal attraction enough to become "suddenly" popular after the fifteenth century. (drinking coffee a thousand years ago was a very sacred ritual, not ready to drink.)

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