![]() Darker roasted beans will reach an internal temperature of 460-470 F while light roasted coffee reaches an internal temperature of 356 to 401. Towards the end of a roast, the hotter the coffee beans get the more its caffeine vaporizes. Depending on the variety of coffee plant will influence caffeine content.Darkness of RoastLighter roasted coffee also has slightly higher caffeine levels than dark roasts. Through this 2016 study, researchers discovered that Arabica beans contain 34.1–38.5 g of caffeine per kilogram (kg) of dry coffee whereas Robusta beans contain 68.6–81.6 g of caffeine per kg of dry coffee. Robusta coffee beans typically contain around twice as much caffeine as Arabica beans. Arabica grows at higher elevation, which experiences fewer insects. Robusta produces more caffeine because it is grown at lower elevation, which has a higher presence of insects. Caffeine is actually a defense mechanism produced by coffee plants as a repellant against insects. The two main species include: Arabica and Robusta. In terms of a coffee drink’s caffeine concentration, the amount of coffee used to make a drink is less important than the way the coffee is brewed. Coffee Varieties There are many different species of coffee, and coffee beans from different plants vary in their caffeine content. Another misconception is that one shot of strong- tasting espresso is far more caffeinated than a cup of brewed coffee. ![]() One misconception is that the greater volume of coffee inside your cup indicates that the drink is more caffeinated than others. There are many factors that determine how much caffeine a coffee drink contains. Coffee drinkers, pondering between their coffee choice of the day, constantly pose the question “How much caffeine is in this?” This question is actually quite tricky, and the answer just depends.
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