My chemistry project is on the comparison of two different brands of coffee caffeine levels. The results were formed by tests that I did involving extracting caffeine from two different brands of instant coffee. The first thing I would like to explain is what caffeine actually is.
Caffeine is a stimulant that occurs in several plants widely distributed throughout the world.
It is an important ingredient in many beverages and in several drugs. The average cup of coffee or tea contains 100 to 150 milligrams of caffeine, and a 12-ounce bottle of cola contains about 35 to 55 mg of caffeine. Among these facts is, caffeine is one of the worlds most widely used drugs. Anthropologists say that they used it as far back as the Stone Age. It is in one of the groups of stimulants called methylxanthine, or xanthine, which naturally occurs in plants.