Acidity Of Different Types of Tea Leaves
A chemical study
The story of tea begun according to legend of the early emperor named Shen Nung who was a skilful ruler, imaginative scientist, and patron of the arts, 5 000 years ago in ancient china. For him, with his prophetic law to be compulsory among other things, he assured that all drinking water should be boiled as a hygienic precaution. The emperor visited a distant region in his realm on a summer day when he and his court stopped to rest. In harmony with his prophetic law, his servant started to boil water that would be for the emperor's court to drink. Dried leaves were all over the place; when some of it fell into the water, a brown color started to infuse into the boiling water. The emperor being a scientist was so interested to what the liquid had become, he started to drink some of it and he was very refreshed. And that was the legend of how tea was originated, which many historians believe to be closely related to the discovery of tea where the real actual story has already been lost in the books of history.
Discovery of caffeine in tea
The history of caffeine that is present in tea was initially discovered in 1827 and was first named theine. After a while, theine was also found in some other plants that were related to tea plants. Sooner or later, evidences show that theine that was found in tea was similarly the same with caffeine that is found in coffee, so the term theine was never used again.
Different types of tea
Black Tea contains caffeine in nature and can be decaffeinated to remove most of the caffeine content. Examples of this are English breakfast, Chai Spice, and Earl Grey.
Ooolong tea contains caffeine in nature, and the content is normally less than black tea has to offer and it can be decaffeinated to remove most of the caffeine content. Examples of this are China Oolong, Formosa Oolong Bay Jong, and Ti Kuan Yin.