Which Teas Have the Most Amount of Caffeine?

By Bridget Reed
Medically Reviewed by:

Melinda Hany, Registered Nurse

Which Teas Have the Most Amount of Caffeine?

June 28, 2024

At Herbaly, we understand that tea is more than just a soothing drink — it's a daily ritual that caters to a variety of needs, including the desire for a natural lift in alertness and focus. 

Whether you're navigating the morning rush or pushing through an afternoon slump, knowing the caffeine content of your tea can make all the difference. 

In this guide, we'll explore which teas pack the most punch and which ones gently support your day without too much buzz.

Why Do Some People Seek Higher Caffeine Teas?

Before we dive into the specifics of which teas offer the most caffeine, let's unpack why some individuals opt for these zesty brews. 

If you've ever reached for a cup of tea to jump-start your morning or lift a lagging afternoon, you're likely familiar with the draw of caffeine — but there's more to it than just an energy kick:

  • Sharper Focus:Caffeine sharpens the mind, making it easier to stay on task whether you're starting your day or pushing through a deadline.
  • Sustained Energy: Unlike the jolt from a sugary drink, the natural caffeine in tea uplifts your energy in a balanced, gentle way, perfect for those long days.
  • Pre-Workout Boost:Athletes and fitness enthusiasts often sip on high-caffeine tea before a workout to enhance endurance and overall physical performance.
  • Supports Metabolism: A little caffeine can complement efforts in managing weight, giving a slight push to the body's metabolic rate.
  • Consistent Mental Acuity: Beyond the early hours, a midday cup can help overcome the common afternoon slump, maintaining productivity and focus when you need it most.
  • Reducing Hyperactivity: “Studies suggest that caffeine can improve attention and concentration in people with ADHD, helping them stay on task and minimize distractibility. The caffeine might also have a calming effect on hyperactivity, a common symptom of ADHD. This can make it easier to sit still and complete tasks,” notes Heidi Wright, Registered Nurse.

In essence, high-caffeine teas are chosen for their versatile benefits that go beyond mere wakefulness. They support a lively, focused, and balanced lifestyle, making every cup a smart, healthful choice.

What Determines the Caffeine Content in Tea?

Diving into the world of tea, it’s fascinating to see how the caffeine content can vary so widely from one blend to the next — but what exactly influences these differences? Understanding this can help you choose your perfect tea based on your caffeine preferences.

Here’s a look at the key factors:

Type of Tea Leaf

The caffeine content in tea leaves depends largely on the type of plant. For example, leaves from the Camellia sinensis plant, which are used for black, green, oolong, and white teas, naturally contain caffeine. The way these leaves are processed and the part of the plant used can significantly affect the caffeine levels.

Growing Conditions

The environment where the tea is grown also plays a crucial role. Factors like altitude, soil chemistry, and climate can impact how much caffeine a tea leaf develops. Generally, tea plants grown at higher altitudes tend to produce leaves with more concentrated flavors and potentially higher caffeine levels.

Harvesting Time

When the tea leaves are picked can also influence their caffeine content. Younger leaves and buds, which are often used for high-quality teas, typically have more caffeine than older, more mature leaves.

Processing Method

The way tea leaves are processed after harvesting affects their caffeine concentration. For instance, black tea, which undergoes full oxidation, tends to retain high levels of caffeine. Green tea, less oxidized, often has less, while white tea, which is minimally processed, usually has the least.

Brewing Technique

Finally, how you brew your tea can make a big difference. The temperature of the water, the amount of time the tea steeps, and how much leaf you use all influence the amount of caffeine that ends up in your cup. Hotter water and longer steeping times generally extract more caffeine.

Which Teas Have the Highest Caffeine Content?

When it comes to finding a tea that truly energizes, not all teas are created equal. Some pack a more potent punch thanks to their higher caffeine content. For those mornings when you need an extra kick to get going or for those long study sessions where focus is key, here are some of the teas known for their higher caffeine levels:


This vibrant green tea powder is a powerhouse in the world of caffeinated teas. Unlike other teas, matcha involves consuming the whole tea leaf in powdered form, which means you ingest all the caffeine the leaf offers. A single serving can contain as much caffeine as half a cup of coffee, making it a favorite for sustained energy.

Yerba Mate

While technically not from the Camellia sinensis plant, yerba mate is a South American herb steeped like tea and famous for its stimulating effects. It contains a caffeine content similar to coffee and is cherished for its smooth, balanced energy boost without the jitters.

Black Tea

Black tea is the classic go-to for a caffeine fix. It offers a strong flavor along with a considerable caffeine boost. Depending on the specific variety and brewing time, black tea can have almost as much caffeine as a cup of coffee. Popular black teas like English Breakfast and Earl Grey are staples for those who prefer a strong start to their day.

Oolong Tea

This traditional Chinese tea sits somewhere between green and black tea in terms of oxidation, which gives it a unique flavor and a moderate to high caffeine content. Oolong is ideal for those who enjoy a nuanced taste along with a noticeable but not overwhelming lift in alertness.

Pu-erh Tea

Known for its fermentation process, pu-erh tea can also pack a caffeine punch. The aging process that pu-erh undergoes enhances its flavor complexity as well as its caffeine content, making it a sought-after choice for tea enthusiasts looking for depth in both taste and effect.

Which Teas Offer Minimal Caffeine?

For those who love the ritual of tea but prefer to keep their caffeine intake on the lower side, there are several options that offer minimal to no caffeine. 

These choices are perfect for unwinding in the evening or when you need a soothing cup without the buzz:

  • White Tea: Known for its delicate flavor and minimal processing, white tea has the lowest caffeine content among the traditional teas made from the Camellia sinensis plant. Its subtle, sweet notes make it an exquisite choice for those seeking mild stimulation.
  • Herbal Teas: For completely caffeine-free options, herbal teas are the way to go. Ingredients like peppermint, chamomile, and hibiscus are not only free of caffeine but also provide a calming effect, making them ideal for relaxation and bedtime routines.
  • Decaffeinated Green and Black Teas: If you enjoy the taste of green or black tea but wish to avoid caffeine, decaffeinated versions are available. These teas undergo a process to remove most of the caffeine, allowing you to savor your favorite flavors at any time of day without disrupting your caffeine balance.

These low-caffeine and caffeine-free teas ensure everyone can enjoy tea's comforting warmth and diverse flavors, regardless of their caffeine preferences or sensitivities.

How To Enhance Your Tea Experience

Whether you're sipping on a high-caffeine blend to energize your morning or enjoying a calming herbal tea at night, here are some tips to make the most out of your tea-drinking experience:

Mind Your Brewing Time

As touched on previously, the strength and caffeine content of your tea can greatly depend on how long you let it steep. For a stronger, more caffeinated cup, steep your tea for longer. Conversely, if you prefer a lighter taste and less caffeine, shorten the brewing time. 

This is particularly handy with our Wellness Functional Tea, which offers a perfect balance when brewed right — not too strong, just pleasantly invigorating with its blend of eight natural ingredients.

Experiment With Sweeteners

If you find your tea needs a little extra sweetness, avoid refined sugars and opt for natural sweeteners. 

Our Organic Stevia Leaf Sweetener is an excellent choice that enhances your tea without adding calories. A few drops can transform your beverage into a sweet delight, harmonizing beautifully with both caffeinated and herbal teas.

Adjust the Water Temperature

Not all teas require boiling hot water. In fact, delicate teas like green or white tea benefit from slightly cooler water to prevent bitterness. Getting the temperature right can significantly improve the flavor and enjoyment of your tea.

The Bottom Line

So, which teas have the most caffeine? As we've explored, teas like matcha, yerba mate, and certain black and oolong teas are at the top of the list for those seeking a substantial caffeine boost. 

These options are perfect for energizing your day, enhancing focus, and supporting physical performance. On the flip side, for those who prefer a gentler, less stimulating experience, white teas and herbal blends provide delightful alternatives that keep caffeine content to a minimum.

At Herbaly, we believe in the power of tea not only to energize but also to nurture and calm. Our collection of Functional Teas offers a range of options, ensuring that there's a perfect cup for every moment of your day. 

Explore our collection and find your favorite way to elevate your tea experience naturally. Dive into the world of Herbaly teas and discover the natural benefits that await in every cup.


Coffee – The Nutrition Source | Harvard

Natural vs. Added Caffeine: What’s the Difference? | Food Insight

Factors Influencing Caffeine Levels in Tea | The Spruce Eats

Medicinal Plants Used for Anxiety, Depression, or Stress Treatment | PMC

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