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Caffeine in Tea: Complete Guide How Much, Comparisons & Effects

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erich.silvanguyen@gmail.com
June 3, 2025

It should also be noticed that decaf tea is usually not considered a diuretic and won’t dehydrate you. Among all the teas in this guide, matcha is the one that tends to surprise people most. It is still green tea – not coffee – but because the leaf is finely milled into a powder and whisked into water, you drink the whole leaf, not just an infusion. That is why matcha often feels stronger and more “awake” than a standard green tea bag. If you are wondering how much caffeine does green tea have, a standard mug will usually fall between 20 and 45 mg.

Short steeps give a milder buzz, while longer steeps bring out a stronger punch. With typical green tea, steeping for about two minutes in water below boiling may extract a little over half of the available caffeine. Holding the leaves in hot water for four to five minutes pulls far more into the cup, sometimes close to all of it. The amount of caffeine in tea significantly varies depending on the type of tea and the tea leaves used. Similarly, the caffeine content of coffee depends on the beans used and the brewing process.

How Many MG Of Caffeine Does Tea Have? By Tea Type

Herbal teas are not considered true teas because they’re not derived from the Camellia sinensis plant. Instead, they’re made from a variety of caffeine-free ingredients, such as flowers, herbs, and fruit. Though moderate tea consumption is a very healthy choice for most people, exceeding 3 to 4 cups (710 how to dilute tea tree oil to 950 ml) per day could have some negative side effects. Yes, steeping tea for a longer duration generally increases the caffeine content. The longer the tea leaves are in contact with hot water, the more caffeine is extracted.

Veranda / Blonde Roast Coffee

Teas that steep for longer and in hotter water tend to produce a more potent cup. Therefore, 1 cup (237 ml) of brewed coffee generally has more caffeine than a cup of tea. Discover exactly how much caffeine is in different types of tea.

Does decaf tea have caffeine?

Data on the dangers of caffeine during pregnancy is mixed, and it’s still unclear exactly how much is safe. However, most research indicates that the risk of complications remains relatively low if you keep your daily caffeine intake under 200–300 mg. Symptoms of caffeine sensitivity or overdose can include anxiety, insomnia, rapid heart rate, jitters, and digestive upset. If you experience these symptoms, reduce your caffeine intake. Starbucks cold brew coffee, on the other hand, is brewed by slow-steeping coffee in cold water for hours.

  • The most commonly consumed caffeinated beverages are tea and coffee, although tea contains less caffeine than coffee.
  • Green tea can become astringent with extended brewing, so just a short steep is recommended — a factor that could also contribute to it being lower in caffeine than black tea.
  • What sets them apart is the time of harvest and level of oxidation of the leaves.
  • While technically dry tea leaves often contain more caffeine by weight than coffee beans, we use far less tea to make a drink, so the final cup is significantly weaker.
  • Pu’er tea has two main varieties, sheng and shou, which refer to raw and ripe (or dry and wet) processing.
  • Matcha can contain anywhere from 19 to 44 mg per gram of powder, which is around half a level teaspoon.

Likewise, if you’re trying to cut down on caffeine, you might think that tea is the safer choice. While it’s true that the caffeine content in tea is generally lower than in coffee, there are a lot of variables. The caffeine content in a cup of tea will not only depend on the type of tea you’re drinking, but also how you prepare it. Using tea bags rather than loose-leaf tea might give you a more consistent amount, but longer steeping times and hotter water will increase the amount of caffeine released. Choosing high-quality green tea can also alter your experience significantly.

Can I reduce caffeine by throwing out the first steep?

Like tea, a lot of factors can influence the caffeine content of coffee including the type of coffee beans, the roasting process and the type of coffee. A standard 240 ml mug of black tea typically contains between 40 and 75 mg of caffeine. Green tea is usually lower, ranging from 20 to 45 mg, while white tea sits between 15 and 30 mg. These levels are generally about half that of a standard cup of coffee. Yes — decaf tea still contains a tiny amount of caffeine, so it isn’t completely caffeine-free. A typical cup (8oz / 237ml) of decaf black tea contains around ~2mg, compared with ~75mg in a mug of regular tea (UK guidance).

Water Temperature

You may also brew high-caffeine teas for a shorter time, such as 1 minute instead of 3. Tea leaves contain 4% caffeine, while coffee beans have 0.9% to 2.6%. However, the coffee brewing process uses hotter water, which extracts more of the caffeine from the beans.

Starbucks’ Blonde Roast (also known as Veranda Blend) is by far the strongest coffee on the Starbucks menu. If you need a coffee to wake you up, the blonde roast will do it. As you can see by the size chart above, it’s pretty clear that a Trenta coffee is going to contain more caffeine than a Tall coffee. When coffee beans are measured by weight, the differences in caffeine are actually very minimal. A coffee bean is a coffee bean, and it will contain roughly the same amount of caffeine.

I’m Transitioning from Coffee:

Black tea and green tea start off the same way, but black tea gets its color and bold flavor through a process of oxidation. Black tea is generally considered to have the most caffeine of the different types of tea, and it’s true that some preparations could contain up to 112 mg of caffeine per cup. However, with an average of less than 50 mg per 8-ounce serving, it can also be a lower-caffeine choice. White tea gets its name not from the color of the tea when it’s brewed, but from the fine white hairs that cover the first new leaf buds of the tea plant.

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