How much caffeine is contained in deeply roasted coffee beans? The depth of coffee roasting

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)

Intuitively, there's more caffeine in deep-roasted coffee, right?

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

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 maximum 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, shallow roasted coffee beans have more water content, so 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 areas 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.