Coffee is the most popular source of caffeine, so it's no surprise that people often look for information about how much caffeine can be found in their favorite cup of joe.
Caffeine has been studied more than any other drug due to its prevalence in everyday life. It’s considered safe to consume daily, but too much might cause restlessness, insomnia, heart palpitations, and anxiety.
Every type of bean has its own unique flavor and characteristics, as well as different levels of caffeine.Arabica beans contain the highest amount of caffeine, with an average between 1.1-1.5 percent per dry weight.
Robusta beans have a higher concentration than Arabica, at 2-2.7 percent per dry weight.When roasted, both types of beans have reduced caffeine content