For medium roasting or even dark roasting, because the roasting time of coffee beans is longer and the degree of expansion is more obvious, the carbon dioxide and other gases and oils in the coffee beans are easily discharged from the coffee beans themselves, causing the coffee beans to become 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 roasting!
In the case of dark baking, if you don't see a shiny appearance, there may be a problem during baking.
As for light roasted coffee, if it has been stored for a very long time and there is a light layer of oil on the surface, it means that the coffee is no longer fresh!
It should not be that difficult to tell whether coffee is light, medium or dark roasted. Except for some special beans, the easiest way is to distinguish them by color. As for the color number, just search and compare on the Internet.
Because I would give the self-roasted coffee beans to Chen Banxian for brewing. If it was medium roasted, he would often ask me about the oil. I was worried about whether it was broken or something, so I had to write an article for him to check.
I recently joined a coffee brewing club and found out that the people in it are so awesome. The Internet celebrities who talk about brewing coffee with all kinds of sourness really made me laugh to death! 🤣
Coffee is about science, not random things. Like a self-proclaimed religious leader, I believe that all religions should be accepted mindlessly.
I really warn those who write a lot of specious theories just to make money, stop pretending to understand all kinds of things, even though I don’t really understand them. 🙈
If we continue like this, it will only make more and more people confused in the end. They only know how to buy various products you recommend and then put them on without knowing where the formula comes from.
When brewing becomes boring and formulaic, simply give up on this fun daily fix.
If you really want to be formulaic, get a "Switch" immersion filter cup. As long as you seize the time to open and close the valve, you can achieve the brainless thing you want. It's completely formulaic!
If you feel that the article I wrote is helpful to you, you can also leave a commentSponsor me with a small amount, to write more high-quality content.
