Is there more caffeine in deep roasting or light roasting?

Follow the caf é (Wechat official account vdailycom) and found that Beautiful Cafe opened a small shop of its own.

-Segmentation line-

Coffee is almost an indispensable companion for modern people in the morning. Without caffeine, the body does not seem to have entered the awake mode. But which kind of coffee bean has more caffeine? Let's take a look at the Tasting Table report.

Anyone, whether it's going through a sleepless night, or being so mentally deficient that he wants to go back to sleep, knows how to drink that too strong black coffee, the whole process from the stomach to the brain. Intuitively, there's more caffeine in deep-roasted coffee, right?

This is a long-debated issue in the coffee industry. Although many people think that deep-roasted coffee is full-bodied, of course because there is more caffeine, another school thinks that when you need a lot of caffeine to wake up, light roasting is a better choice. Believe it, however, both sides are wrong.

In fact, every coffee bean has the same caffeine content, whether it's deep roasted or light roasted.

So why is there a long-standing rumor that light-roasted coffee has the ability to retain caffeine?

Proponents of light-roasted coffee believe that the longer the beans are roasted, the more caffeine volatilizes in the beans, but in fact, the longer the beans are roasted, the more caffeine is lost.

Coffee beans also swell slightly during roasting, making deep-roasted coffee beans larger and lighter than shallow roasting. The conclusion is that the same amount of coffee drunk every morning contains more shallow roasted beans, so the coffee is relatively strong. However, according to the experience of many professional bakers, a little more is really negligible.

What is the most important inspiration of this story? To get to the root of the problem, get some sleep.

After asking the founder of the coffee shop step by step, Ah Xian said that caffeine in coffee beans does not start to volatilize until it reaches more than 600 degrees, but whether it is deep roasting or light roasting, the highest roasting process is only about 220 degrees. Water or other substances are volatilized. From this point of view, the caffeine content of the two kinds of coffee beans is the same. However, in the process of making coffee, light-roasted coffee beans have more water content, and making coffee of the same capacity requires less coffee beans, natural caffeine will be lower, and many light-roasted coffee beans choose better quality coffee beans. these coffee beans from high altitude also contain less caffeine. This may be one of the reasons why many people think that deep-roasted coffee has a better refreshing effect when it comes to coffee.