Coffee is a brewed drink prepared from roasted coffee beans, which are the seeds of berries from the Coffea plant. The genus Coffea is native to tropical Africa specifi.y having its origin in Ethiopia and Sudan and Madagascar, the Comoros, Mauritius, and Reunion in the Indian Ocean..Caffeine is a central nervous system CNS stimulant of the methylxanthine cl It is the world’s most widely consumed psychoactive drug.Unlike many other psychoactive substances, it is legal and unregulated in nearly all parts of the world..Ground Coffee per Cup. Two tablespoons per oz cup is awfully strong, unless you really, really want to make yourself a brutal, bitter, caffeine monster of a drink..An average cup of coffee contains mg of caffeine, but some types contain over mg. This article lists the caffeine content in different coffee types..
An average cup of coffee contains mg of caffeine, but some types contain over mg. This article lists the caffeine content in different coffee types..Is your caffeine habit causing problems? Find out how much is too much and if you need to curb your consumption..