Teas are the most consumed beverages in the world. teas include those derived from the tea plant of Camellia sinensis such as Green teas, Black teas, White teas, Oolong teas, Matcha teas, and those from others herbs such as fruit teas and Rooibos teas.
In this article, I am writing on the caffeine content of
those teas derived from the plant tree of Camellia Sinensis .these are teas that
contain caffeine while those teas from other herbs do not contain caffeine. The
production process of teas produced from camellia sinesis differ and these
determine the caffeine content of each tea based on their oxidation and
fermentation. The plant Camellia Sinensis contains caffeine and the amount of
caffeine in a tea depends on the part of the plant it is derived from. The bud
contains 4.70%, the first leaf contains 4.20%, the second leaf contains 3.50%,
the third leaf contains 2.90%, the upper stem contains 2.50% and the lower stem
contains 1.40% of caffeine respectively.
Green tea and white tea are non-fermented, while black tea and Pu-erh are fermented
tea while oolong tea is a semi-fermented tea. The caffeine content on an average
teacup is about 2.5% to 4% of the tea in a teacup. Studies carried out revealed
that an average teacup of black tea brewed from 3-5 minutes contains between 22-60
mg of caffeine depending on the type of black tea. A cup of Green tea brewed
for 3-5mins contains 16-41 mg of caffeine. A cup of white tea contains about
20-55mg of caffeine when brewed for 3-5 minutes. A cup of oolong tea contains
about 10-55mg of caffeine when brewed for 3-5 minutes. A cup of Matcha tea
contains about 20-40 mg of caffeine while a cup of Pu-erh tea contains about
14-125mg of caffeine.
A decaffeinated black tea contains about 1.8 -3.1mg of
caffeine while a decaffeinated green tea contains 8.7- 10mg of caffeine if
brewed for 5 minutes. The lesser the brewing time the fewer caffeine contents
in teas. When comparing the amount of caffeine in coffee and teas, it was
observed that coffee contains a higher amount of caffeine than tea. Coffee
contains about 60-150 mg of caffeine per cup. Caffeine has health benefits these
include: it helps in improving cognitive function and gives energy to the
body.it can also cause harm to the body when taken in high doses.
Tea is a healthy diet drink and generally contains
polyphenols that help the body to fight off various diseases and illnesses. it
gives hydration to the body but it should be taken in moderation. drinking a
maximum of 3-5 cups of tea daily is good for your body.
To watch video on YOUTUBE click here
