The recommended caffeine intake is about 400 milligrams per day, translating to roughly four cups of coffee Averagely, a cup of pourover coffee has roughly 80 to 150 milligrams of caffeine;In a brewed cup of coffee it's the caffeine that will give the infusion most of its bitterness and 'coffee' flavor There is also the flavor or aroma aside from caffeine that will be present This is how you'll notice fruity notes, or chocolate, or a hint of vanilla There are the flavors and aroma that are specific to the beans you've bought The bitterness and earthy tones areFactors that affect how much caffeine is in one coffee cup include bean type, roast, grind size, and brewing method Bean Type There are two types of coffee beans—Arabica beans and robusta beans About 70 percent of the world's coffee comes from Coffea arabica or Arabica coffee beans Arabica beans have a rich flavor but contain less caffeine than robusta beans Robusta coffee

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