How Much Caffeine In Coffee: Which Coffee Has the Most Caffeine?

几个小时前喝咖啡后，您是否在咖啡店排队入睡？您应该喝浓缩咖啡，淡白色或酿造的咖啡吗？那烤呢：浅或黑？

If you’re like me and you like your cup of coffee with an extra kick in the butt, you may be wondering:how much caffeine is in coffee？什么类型的咖啡有the most caffeine？

Sources:US Food and Drug Administration,Caffeine Informer,National Coffee Association

豆类的类型

开始搜索的最佳场所是来源。有two主要种类coffee plantthat find their way to your cup: Arabica and Robusta.

一般而言，阿拉比卡豆被认为比Robusta豆更高。尽管罗布斯塔植物比阿拉比卡植物容易得多，但它们具有浓烈的苦味味道。另一方面，阿拉比卡以其甜美和果味的口味而闻名。

Arabica may be the more popular of the two, yet Robusta is the clear winner in the caffeine competition. On average, Robusta beans have twice as much caffeine content as Arabica beans (1）。

Robusta很容易找到，因为它几乎总是选择便宜的超市品牌的选择。尽管大多数工艺烘焙师都使用阿拉比卡豆，但您可以找到一些挖掘的高质量的Robusta烤肉。

烤型

有一个流行的神话floating around that darker roasts have more caffeine than light profile roasts. Unlike the myth of the Loch Ness monster (oh, it’s real), these roastsdo not有more caffeine than light roasts. Many coffee know-it-alls say that lighter roasts have the most caffeine, but they are wrong as well.

豆豆，两种烤面包都有same amount of caffeine(2），尽管它比这更复杂。

Related:Is caffeine bad?

When beans are roasted, theylose他们的一些质量，如此的深色烤豆（煮熟的豆子）的重量小于浅烤豆。因此，一磅的深色烤肉比一磅烤打火机的豆子略多。

当您酿造时，如果您通过体积(like with a scoop), the light roast will produce a more caffeinated cup of coffee. However, if you measure by重量, then the darker roast brewed coffee will have more caffeine. If you’re scratching your head right now, don’t worry, this puzzle had me confused for a while as well.

以这种方式看：一杯在轻型剖面上烤的咖啡要比一杯烤深的咖啡因更多，因为烘烤越轻，较重和浓密的豆子。Though the volume is the same, the light roast will have more mass.

如果您测量每种烤的20克（深色和轻度），则它将具有更多的咖啡因，因为它具有更多的体积。两者均重量相同，但由于较深的烤豆密度较小，所以you will have more of them.

Still confused? Check this explanatory video below, or read our guide ondifferent coffee roasts.

Type of Beverage

Decaf咖啡, espresso, drip — different coffee drinks contain different amounts of caffeine. It may seem that a standard 235 ml cup of brewed coffee (drip coffee) has less caffeine compared to espresso, but it actually doesn’t.

The caffeine content of your average 235 ml drip coffee is around 94.8 mg (3), whereas the caffeine content of a shot of espresso (about 1 ounce) is around 62.8 mg (4）。未知咖啡因摄入量会产生一些讨厌的副作用，因此请继续阅读。

So if we are comparing coffee drinks, then drip coffee is the better choice; however, espresso has more caffeine per volume than brewed coffee (drip coffee). For every ounce, espresso has about 40–55 mg of caffeine. The caffeine content of drip coffee is only 9–18 mg per 30 ml (1 oz).

The caffeine content of a coffee drink also depends on its serving size. If you make your espresso a double shot then you are getting either just as much or more caffeine than you would with a regular cup of drip coffee, yet it’s going to take quite a bit of espresso to beat the dreaded 590 ml. Starbucks Venti.

Decaf咖啡still has small traces of caffeine, and instant coffee is subject to differing levels of caffeine.More about different types of coffee here.

判决 - 哪种类型的咖啡含有最多的咖啡因？

那么哪种咖啡最多？好吧，这取决于有一些选择。These highly caffeinated beans有been engineered to have high amounts of caffeine. Just be sure you’re aware of a safe amount of caffeine intake before consuming coffee like this. The health benefits of coffee can be great in moderation.

两次浓缩咖啡的双镜头将在一周中的任何一天都击败标准尺寸的滴灌啤酒但是它不能击败超过295毫升的滴水酿造。Regardless, if you want to ensure high caffeine content, then choose whichever is brewed with Robusta coffee beans.

Let me know if you have any questions in the comments below. And please share this article if you enjoyed it!