Which One Contains More Caffeine, Coffee or Tea

By November 15, 2018

Coffee cup and coffee beans on wooden background. Top view.

Coffee and tea are best companies while we are doing extra work at night or feel sleepy in the afternoon. We all know that caffeine is good for keeping us awake; actually it does more than that. Before knowing which one contains more caffeine, we need to know the effects of caffeine firstly.

Effects of Caffeine


We know that both tea and caffeine can make us alert. When you are still focusing on your work in the midnight, a cup of strong tea or coffee can be the best companion. However, when tea and coffee are both alternative, which one do you prefer? The main difference of them lies in caffeine content. Let’s first know something about caffeine.

Caffeine is tasteless and provides no nutrition. Yet it indeed has magic effect in alerting people. Moderate intake of caffeine can help people weaken the pain from drowsiness, headaches, and migraines. Moreover, studies proved that caffeine helps people relieve from high pressure and thereby cut suicide risk by 45 percent. It is also said that caffeine helps to reduce the risk of developing Alzheimer’s and dementia.

However, too much water drowned the miller. Overdose caffeine can cause addition issues, which is also the result of caffeine withdrawal. If you overdose caffeine and suddenly withdraw from it, you may suffer from anxiety, irritability and drowsiness. Symptoms of overdose include confusion, hallucinations, vomiting.

Which one contains more caffeine? Coffee or tea


According to Bluebird Tea Co,. Coffee contains more caffeine than tea. Yet before brewing, tea leaves contain more caffeine than coffee beans.

Yet to blindly assert that tea has less caffeine is also unreasonable. One reason for this lies in the different kinds and features of tea. According to the study, different kinds of tea contain different kilograms of caffeine and the water temperature will also influence the caffeine concentration.

Here is a picture for comparison.


We can see that Herb& Red tea contains no caffeine and HiCAF Tea contains more caffeine even than coffee. Different kinds of tea have different caffeine content.

It is also said that the temperature of water also affects caffeine content. The hotter the water is the more caffeine dissolves. For example, caffeine in green tea and white tea are lower because they are usually steeped at a lower temperature and for a shorter time. Thereby, if you want to achieve noticeable awaking effect, you’d better choose strong caffeine-contained tea such as black tea and Oolong tea. Remember that a higher water temperature will enhance this effect.

Tea is honored as a culture in China, and coffee—a symbol of western life. To drink them in a right way requires lots of preparation. One of them is to choose a right cup. About coffee you can choose an elegant double glass cup like this. For tea, Chinese people prefer ceramic cup.

To sum up, most teas contain less caffeine than coffee, and as for tea the degree of awakening depends on various factors such as water temperature and tea leaves. 

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