Green Tea Caffeine

Tea is one of the popular beverages that have been used by humans for a very long time. Nowadays it is available in many different forms, like, black tea, green tea, oolong tea, etc. Among them green tea has emerged popular for its so-called health benefits and is now used in almost all parts of the globe. Green tea is now available as nutritional supplements, in the form of tablets, pills, powder, green tea extract, etc. However, even green tea contains caffeine, which is said to be unhealthy, if consumed in large amounts or for a long term. Does green tea contain caffeine? If yes, how much of caffeine is there in green tea? If you are interested in knowing more about green tea caffeine content, then, scroll down.

Does Green Tea Have Caffeine?

This is one of the common queries from people, who use green tea. It has also been observed that many people abandon coffee for its caffeine content and switch over to green tea, as the latter is said to be healthier. In fact, even green tea contains caffeine and this is one of the much debated subject. According to some health experts, green tea caffeine amount is much lesser to that of black tea, coffee, etc. so, this tea may not cause any significant side effects due to its caffeine content. However, there are some reports that suggest that some types of green tea have a higher caffeine content than black tea, but, the difference is that there are certain compounds in green tea (EGCG and theanine) that can deactivate caffeine, as the tea is brewed with hot water.

Whatever it may be, it can be deciphered from these contentions that the caffeine content in green tea may not be as harmful, as that in coffee and certain types of tea. Nowadays, decaffeinated green tea is also available in the market, but, it is not popular in countries like China and Japan. People in these regions believe that such decaffeinated versions, may not be as healthy as the original green tea types. Now that you know more about green tea and caffeine, let us take a look at the amount of caffeine in green tea.

Green Tea Caffeine Content

As compared to black tea and coffee, green tea contains less amount of caffeine. Studies show that green tea contains one fifth to one half of the caffeine content in coffee. If you take a look at the various aspects of green tea caffeine vs coffee, then, four to five cups of green tea will be equivalent to one cup of coffee. However, the caffeine content in coffee powder is found to be much lesser than that of tea leaves, but, once it is brewed, tea contains less caffeine, as compared to coffee. This phenomenon may be explained with the above said contention that tea has beneficial compounds that deactivate caffeine to some extent, while brewing.

Another contention is that green tea is usually derived from Camellia Sinensis plants, which are said to have less caffeine in their leaves, whereas black tea is usually derived from Camellia Sinensis Assamica, which are said to have more caffeine. But caffeine content in some types of premium quality green tea (Longjing and Gyokuro) is said to be almost similar to black tea. It is explained that mature tea leaves have less amount of caffeine and high quality green tea is often derived from the terminal buds that can have a higher caffeine content, which is almost similar to that of black tea. You may also read more about caffeine in coffee vs green tea.

Green tea caffeine content may vary with the type of tea, as well as the time taken for brewing. So, higher grade green tea types may have slightly higher caffeine levels, as compared to other types. Another point is that brewing green tea for a long time, releases caffeine in higher amounts. Ideally, green tea must be brewed for a minute only. But, if you use the same tea subsequently, the caffeine content can be much lower. In general, it can be said that a cup of green tea contains around 15 to 50 milligrams of caffeine, whereas in black tea, it is around 50 to 80 milligrams. In case of coffee, caffeine content is around 50 to 100 in instant versions and 100 to 200 in drip version.

In short, green tea caffeine content is slightly lower than that of black tea, but, much lower, as compared to that of coffee. Apart from that, the beneficial compounds in green tea are said to act as decaffeinating agents, while brewing. EGCG is such a compound in green tea that is said to bind the caffeine in tea and deactivate it, when this tea is brewed. Another green tea benefit is that it contains theanine that has soothing and calming effect. So, the caffeine content in green tea may not be as harmful as that of coffee, but, those who are sensitive to caffeine, must avoid or minimize its use. Otherwise, you may use decaffeinated green tea or use the second infusion, after discarding the first.