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Is Tea Caffeine Different From Coffee?

Is Tea’s Caffeine Distinct From That Of Coffee?

The answer is yes. While coffee and tea both contain caffeine, coffee has a much more potent stimulant effect on the body due to its chemical makeup. This is primarily because of the amount of caffeine content in each drink; coffee provides much more caffeine per serving size than tea does.

In comparison, an 8-ounce cup of brewed drip coffee will typically contain around 95 milligrams of caffeine, whereas green or black teas only have about 25 milligrams per 8-ounce cup no matter how long they are brewed.

In addition to these differences in pure numbers, the process of making regular coffee causes its beans to extract larger amounts of caffeine and thus increases its potency when being ground up and brewed- which isn’t true for tea.

All this means that it’s no surprise that drinking a cup of strong black coffee gives you a much stronger stimulating effect on your body than a glass of green or black tea.

What Is The Problem With Caffeine?

When it comes to caffeine, there are some major points to take note of. The U.S. Department of Agriculture (USDA) and the European Food Safety Authority (EFSA) both agree that up to 400 mg per day is a safe level of intake for an individual.

Consuming more than 500 mg in single doses may have unfavorable effects of caffeine, such as restlessness, anxiety, and difficulty sleeping. Additionally, regular consumption of moderate amounts may lead to migraines or chronic headaches.

Caffeine is even suspected of being mildly addictive – if you’re prone to dependence then caution should be taken when consuming products with these compounds in them. All in all, it’s important to keep track of your intake so that you don’t inadvertently drink too much coffee or tea and put yourself at risk of developing problems associated with excessive caffeine intake!

Caffeine Content Varies Depending On The Beverage Type And Preparation

The caffeine content in tea or coffee varies widely, depending on the type and origin of the drink as well as its preparation. Tea leaves naturally have 3.5% caffeine, while coffee beans might contain anywhere from 1.1-2.2%.


Here is an overview of the different types and ways to make tea:


When it comes to tea, there is a wide variety of flavors and caffeine levels to take into account. green, Black, and white teas all come from the same plant, Camellia sinensis. The difference between them is the extraction time and degree of oxidation of their leaves.

Other high-caffeine formats like Yerba mate and Matcha green tea often give you 35mg for half a teaspoon and 85 gm for an average cup respectively. Finally, Herbal Teas usually deliver up to 12 mg of Caffeine which is regarded as very negligible compared to other varieties.


Correcting the preparation of your tea is key to ensuring that the caffeine in tea is according to your desire. Changing the steeping time and hot water temperature can drastically alter how much caffeine is extracted from your cup of tea.

For instance, Tazo Earl Grey tea can contain up to 59 mg of caffeine after 3 minutes of brewing in 6 ounces (177 ml) of water heated to between 194–203°F (90–95°C).

However, if making Stash Green Tea, only 16 mg of caffeine will be extracted after a single minute and rises to 36 mg when prepared for 3 minutes.


Here is a summary of various coffee preparation methods and types:


When it comes to coffee varieties, the level of caffeine in coffee may vary depending on the type of roast. On average, an 8-ounce (237-ml) cup of coffee contains 95 mg of caffeine. While some believe that darker roasts contain more caffeine, this isn’t necessarily true as the roasting process doesn’t affect the caffeine content.

However, since dark roasts are less dense they generally require a larger dose when brewing which can lead to higher levels of caffeine per cup.

Espresso is another strong source of caffeine with a single espresso shot from Starbucks containing around 58 mg of caffeine in 1 ounce (30 ml). Specialty coffee drinks such as cappuccinos and lattes are typically made with a double shot of espresso and provide 116mg of caffeine in total.


When preparing coffee, there are two key components that affect the coffee caffeine level you get from your cup: the temperature at which it is brewed, and the method of brewing.

Hotter water will draw more caffeine from coffee beans than cooler water. The ideal brewing temperature for coffee is 195–205°F (90–96°C). Alternatively, cold-brewed coffee can be made by soaking ground coffee in cold, filtered water for 8–24 hours.

What Are The Other Simulants In Tea?

The other two simulants in tea are the following:

Theophylline & Theobromine

Theophylline and theobromine are two organic compounds closely related to caffeine. They can both be found in very small amounts of tea, although the amount is likely negligible in terms of its overall effect on the body.

These substances have a few physiological effects on the body: Theophylline relaxes smooth muscles in the airway and increases both rate and force of heart contractions, while theobromine stimulates the heart but also has a mild diuretic effect which consequently reduces blood pressure.


L-theanine is an amino acid that is chiefly derived from the tea plant (Camellia sinensis). It is known for its ability to enter the brain through the blood-brain barrier, similar to theophylline, caffeine, and theobromine.

Once it reaches your brain, L-theanine has been linked to a boost in alpha wave production. These are known to be associated with feelings of alert relaxation.

Which One Should You Choose?

When it comes to how you choose to receive your caffeine intake, there are lots of options available. Coffee and tea are two beloved beverages, often enjoyed for their unique flavors and health benefits. However, when it comes to caffeine, these energy drinks are not altogether the same.

For those who want to limit their caffeine consumption, white and herbal teas contain far less than black teas or coffee. Decaffeinated versions of both tea and coffee are also available if you’re looking for no-caffeine options.


How Much Caffeine Is In Green Tea Compared To Coffee?

Green tea and coffee both contain caffeine, but the amount of caffeine in green tea is much lower compared to that of cups of coffee. An 8-ounce serving of green tea contains 29mg of caffeine and an 8-ounce serving of black coffee contains 96mg, which is around three times as much.

What Is The Caffeine Content Of Black Tea Versus Coffee?

The caffeine content of black tea versus coffee is an important difference to note. An 8-ounce cup of black tea contains 47mg of caffeine, while the same volume of coffee contains 96mg of caffeine – almost double the amount.

How Much Caffeine Is In A Black Tea Bag Versus A Cup Of Coffee?

Tea and coffee have distinct levels of caffeine. The amount of caffeine found in tea varies, depending on the type and brand—ranging from 14mg to 59mg in Darjeeling tea and Awake black tea respectively.

On the other hand, a cup of black coffee contains around 96mg of caffeine, which is almost double the amount found in the strongest black tea bag out there!

How Much Caffeine Is In Matcha Tea Compared To Coffee?

Generally, an 8-ounce cup of Matcha contains 70mg of caffeine, whereas a cup of coffee of the same size has 96mg. The difference is based on their respective caffeine concentrations.

What Is The Caffeine Content Of Earl Grey Tea Vs Coffee?

Generally, a cup of Earl Grey tea can range from 24-47mg of caffeine depending on the steep time allowed, while a cup of drip coffee is typically around 96mg for the same volume.

This means that when comparing the two beverages, a strongly brewed cup of Earl Grey contains about half the amount of caffeine present in coffee.

Ellie Patchen

Ellie Patchen

I love a good cup of coffee on Monday mornings for that pick-me-up, also love them in the afternoon, and on Tuesdays. In fact, it's fair to say that I love coffee all day everyday! So much so that I created a whole site to blog about it, answer questions and to just have a place for my frequent ramblings on the wonder that is.. coffee!

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