DISCOVER THE TEA WITH THE MOST CAFFEINE

ZEST TEA DOESN’T JUST CONTAIN MORE CAFFEINE THAN ANY OTHER TEA ON THE MARKET, IT ALSO HAS MORE CAFFEINE COMPARED TO COFFEE. EVEN OUR GREEN TEA FLAVORS! DISCOVER A RANGE OF HIGH CAFFEINE TEAS THAT KICK LIKE COFFEE WITHOUT THE CRASH.

EXPLORE ENERGY TEA

WHAT GOES INTO THE MOST HIGH CAFFEINE TEA DRINKING TEA IS BETTER THAN COFFEE. THERE, WE SAID IT. NOT ONLY IS THE CAFFEINE IN TEA HIGHER THAN COFFEE WHEN YOU DRINK ZEST, BUT IT’S ALSO FULL OF INTERESTING FLAVORS AND REJUVENATING AMINO ACIDS. HERE’S WHAT YOU CAN FIND IN EVERY CUP AND CAN OF ZEST.

CAFFEINE How much caffeine is in tea varies. Most teas contain so little caffeine that you need a few cups to truly wake up. But not Zest. Our green tea provides up to 120mg and our black tea provides up to 150mg. Coffee? Barely scrapes 96mg.

L-THEANINE L-Theanine, an amino acid found naturally in tea plants, interacts with the caffeine in tea. It’s responsible for those mellow, calm and creative feelings. It keeps you productive and on track with a smooth, prolonged energy boost. No more bouncing off the ceilings.

FRESH FLAVORS We select natural non-GMO herbs, fruits, spices and flavors that start a party with your taste buds. From fresh and zingy green tea, to rich and sweet black tea, all available as loose leaf teas, tea bags, and ready-to-drink iced teas.

BLACK TEA OR GREEN TEA LIKE IT HOT? WE HAVE SOME DELICIOUS GREEN TEA AND BLACK TEA BLENDS WITH A HIGH CAFFEINE CONTENT. SWEET AND GRASSY, OR RICH AND MALTY - YOU DECIDE.

Blue Lady
Pomegranate Mojito
Spicy Masala Chai
Superberry Samba
Cinnamon Apple
Earl Grey

5 HEALTH BENEFITS OF HIGH CAFFEINE TEAS CAFFEINATED TEAS AREN’T JUST GOOD FOR A STRONG ENERGY BOOST. IN FACT, HIGHLY CAFFEINATED TEA IS ASSOCIATED WITH THESE AWESOME HEALTH BENEFITS.

ANTI-INFLAMMATORY PROPERTIES Caffeine may counter age-related inflammation. Arthritis, Alzheimer’s, cardiovascular disease and even some types of cancer are all linked to age-related inflammation, but the humble cup of tea could counter that and even prolong your life.

SOOTHE ASTHMA Theophylline, a drug prescribed to treat asthma, is chemically related to caffeine. Caffeine can treat the symptoms of asthma by improving airway function and helping you breathe better.

BOOST YOUR WORKOUT Caffeine can help you burn fat when you exercise, significantly reducing your body weight. There’s also evidence that it can boost your performance and endurance during workouts, especially if you consume your caffeinated teas no more than 60 minutes before you start.

KIDNEY HEALTH A high caffeine content intake is associated with a lower risk of developing kidney stones. Another study has clearly linked caffeine consumption with reduced mortality among those with chronic kidney disease.

PROTECT AGAINST DEPRESSION The caffeine content in tea could protect you against depression. Observational studies have determined a link between caffeine consumption, particularly in coffee and tea, with depression.

L-THEANINE MATTERS TOO! IT’S THIS COMPONENT THAT SMOOTHS OVER THE EFFECTS OF CAFFEINE. WHILE CAFFEINE IS BUSY BLOCKING ADENOSINE, L-THEANINE PROMOTES GABA PRODUCTION. GABA IS A KEY COMPONENT FOR MANAGING STRESS. L-THEANINE FROM TEA LEAVES ALSO GENERATES ALPHA WAVES IN YOUR BRAIN, TO PROMOTE RELAXATION FURTHER.

REDUCES STRESS L-Theanine reduces vasoconstriction to maintain healthy blood pressure, lowers levels of cortisol to reduce your stress response, and soothes anxiety and psychological stress in both acute and chronic circumstances.

KEEPS YOU SHARP L-Theanine improves mental alertness and can even aid creative thinking, as well as speeding up your reaction time, memory time, and enhancing accuracy.

NO CRASH! L-Theanine crosses the blood brain barrier, just like caffeine, to block and stimulate certain neurotransmitters. So, it can soften the harsh effects of caffeine for a calmer “come down.”

CHOOSE YOUR POISON NOT INTERESTED IN A CUP OF TEA? NO PROBLEM, OUR HIGH CAFFEINE TEAS ARE AVAILABLE IN SEVERAL FORMATS. FOR THE TEA NERDS, CHECK OUT OUR LOOSE TEA LEAVES, FOR THE EX-COFFEE DRINKERS, OUR TEA BAGS ARE CALLING YOUR NAME, AND IF YOU NEED A QUICK ENERGY BOOST ON THE GO, LOOK NO FURTHER THAN OUR READY-TO-DRINK RANGE.

READY-TO-DRINK ICED TEA Energy drinks aren’t the only caffeinated beverages to come in a can. You can drink tea on the go with our sparkling iced tea range… including several zero-calorie options. All the energy, none of the sugar.

TEA BAGS Each pyramid tea bag will bump your caffeine intake with up to 150mg, plus L-Theanine and a range of fresh-tasting flavors from non-GMO ingredients. We only use large leaf pieces and natural flavors to spice up your day.

LOOSE LEAF TEA Our black and green teas are available as loose leaf, if you need more freedom to brew your energy tea just how you like it. Just like our tea bags, our loose leaf is made with the entire tea leaf, non-GMO ingredients, and fresh flavors.

WAIT, IS THIS TOO MUCH CAFFEINE?

CAFFEINE LEVELS NATURALLY VARY FROM ONE TYPE OF TEA TO ANOTHER. AT ZEST, OUR TEAS RANGE FROM 120MG TO 150MG PER SERVING. BUT HOW MUCH CAFFEINE IS SAFE? ACCORDING TO THE FDA, 400MG IS THE HIGHEST AMOUNT OF CAFFEINE YOU SHOULD CONSUME IN ONE DAY - WAY MORE THAN YOU’D GET FROM EVEN THE HIGHEST CAFFEINE TEAS AT ZEST.

HOW MUCH CAFFEINE YOU SHOULD CONSUME ALSO DEPENDS ON YOUR CAFFEINE SENSITIVITY. IF YOU’RE ACCUSTOMED TO A TRIPLE ESPRESSO SHOT BEFORE 9AM, YOU’LL HAVE NO TROUBLE CHUGGING A ZEST ENERGY TEA IN THE MORNING… IN FACT, YOU’LL BE IMPRESSED AT JUST HOW SMOOTH AND LONG-LASTING OUR ENERGY BOOST IS. TRY OUR READY-TO-DRINK ENERGY TEAS FOR YOURSELF.

FAQ

What teas have more caffeine than coffee?: High caffeine tea, like our range of tea blends at Zest, contains more caffeine than coffee. Other tea types like matcha and yerba mate may taste great, but they don't provide as much energy as coffee.
What drinks have high caffeine?: Your typical black tea and cup of coffee both have moderate to high levels of caffeine. Other drinks that contain a high caffeine level include energy drinks, soft soda drinks, yerba mate, matcha, and high caffeine tea of course.
Which tea is most like coffee?: Of all the types of tea, excluding herbal teas, black tea is most like coffee. It tends to have a richer, bolder flavor than most tea types. If you drink your tea black, it can be quite similar to coffee.In terms of energy, an ordinary black tea has less caffeine than coffee but our high energy black teas contain more. Take a look at fan-favorite Blue Lady for a highly caffeinated black tea.
Is tea caffeine different than coffee caffeine?: It's the same caffeine stimulant in both tea leaves and coffee beans. The difference is, there's typically more caffeine in a cup of coffee compared to a cup of tea (excluding high caffeine teas). Tea also provides L-Theanine which alters the caffeine effects.
Which teas are caffeinated teas?: The majority of teas that contain caffeine are from the Camellia sinensis plant. The Camellia sinensis leaves naturally contain caffeine and are processed to become black tea, white tea, green tea, oolong tea... and several other well-known tea types.The amount of caffeine per cup varies depending on the tea type and what part of the plant it was harvested from. The tips of the tea plant contain more caffeine than the larger leaves, for example.
Is yerba mate the tea with most caffeine?: Besides the Camellia sinensis plant, there are a few other natural sources. Chocolate and coffee are the most well-known, but there are others, like yerba mate. Yerba mate is a tea made from a South American plant. There's quite a high caffeine content in yerba mate! Here is how it stacks up against teas from the tea plant per cup (8oz):
Yerba Mate - 85mgZest Tea - 120mg to 150mgPu-erh Tea - ##mgMatcha - 70mgBlack Tea - 47mgWhite Tea - 40mgOolong Tea - 37mgGreen Tea - 28mg
Does oolong tea have more caffeine than green tea?: The caffeine content of a tea depends on the cultivar, how it grown, and how it is brewed. Typically, larger leaves have less caffeine than smaller leaves, so a large-leaf oolong could contain less caffeine than a green tea made from tea buds.As oolong contains such a wide variety of different tea cultivars and processing methods, the average of 37mg per serving could be wildly different from the tea you drink.
Does loose leaf tea have more caffeine than teabags?: Nope! Not at Zest Tea, because we use exactly the same tea formula and leaves for both our loose leaf and bagged formats. We like to be precise, so unlike other tea brands we have analyzed our tea to confirm that a single serving can contain up to 150mg of tea.
Which teas are caffeine-free?: Any tea made from a Camellia sinensis var. is caffeinated. Even decaffeinated leaves, whether they're pu-erh teas or white teas, have a few milligrams lingering in there.For tea drinkers looking for a zero-caffeine tea, rooibos teas, fruit teas, and herbal teas are all viable options. Remember, these caffeine-free teas are also free of that wonderful amino acid known as L-Theanine!
Why are Japanese green teas high in caffeine?: This is down to the way a particular tea is grown and processed. Green tea leaves from the Camellia sinensis plant in general have a smaller amount of caffeine than black teas. However, there are exceptions. Shade grown green teas will have more caffeine per leaf.Furthermore, if you drink matcha then you are consuming up to 70mg of caffeine per cup! This is because matcha green tea is made by whisking the tea leaf into water, rather than infusing and removing it like a tea bag. As a result, you consume 100% of the caffeine content of the tea.