242 total reviews

ENERGY | Tea Bags

Product Function:
energy
sleep
Select Flavor: Energy Tea — Earl Grey
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Earl Grey has been a timeless favorite since the blend of black tea and bergamot oil was introduced to the British Earl, Charles Grey, in the 1830s. With its distinctive floral aroma and robust citrus body, our Earl is a masterful take on this classic blend.

No Jitters. No Crash.
Use near-boiling water (freshly boiled water) and brew the tea for 3-4 min if brewing Green Tea, or 4-5 min if brewing Black Tea.
Black Tea, Tea Extract, Natural Bergamot Flavor
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KICKS LIKE COFFEE WITHOUT THE CRASH
150mg caffeine per cup
Improves focus and mental clarity
Natural energy without jitters
Sustained energy without a crash
100k+ GLOBAL Customers
HOW WE STACK UP
CAFFEINE LEVELS PER CUP
Reg. Green tea 35mg
Reg. Black tea 50mg
Coffee 125mg
Zest Green tea 135mg
Zest Black tea 150mg
feel the synergy L-Theanine slows down the onset of caffeine for a smoother and longer energy boost, meaning no jitters and no crash.
Microplastic Free
plant Fiber Teabag
GMO free
Plant Based
Zero Calories
Keto Diet
Frequently Asked Questions
HOW DO YOUR HIGH CAFFEINE TEAS REDUCE THE JITTERS AND CRASH?
Our high caffeine teas are packed with amino acids, including L-Theanine, which studies show helps moderate caffeine’s effects.
HOW MUCH CAFFEINE IS IN ZEST HIGH CAFFEINE TEAS?
Our high caffeine teas range between 135 and 150mg of natural caffeine per serving, depending on the flavor.
IS IT REALLY THE MOST CAFFEINATED TEA ON THE MARKET?
As far as we know, yes. And by quite a margin. Zest high caffeine teas have about 3x the caffeine of normal tea, or about as much caffeine as a regular cup of joe.
CAN THE LEVEL OF CAFFEINE IN ZEST HIGH CAFFEINE TEAS BE HARMFUL?
Up to 400mg of caffeine per day is generally considered safe. With 120-150mg per serving, Zest’s high caffeine teas are comparable to a strong cup of coffee.
HOW DO YOU INCREASE THE CAFFEINE LEVELS?
We have developed an innovative proprietary blending method that enhances the caffeine levels. The extra caffeine comes from natural tea extracts. The process and ingredients used are natural.
THE TEA IS WHITE, IS THAT MOLD?
Tea in its natural form isn’t as caffeinated as we’d like it to be, so we developed a way to add more caffeine to our blends using natural tea extracts. A common side effect during this process is the whitening of the tea.
DO ZEST TEA BAGS CONTAIN ANY PLASTICS/MICRO-PLASTICS?
Despite the look, our tea bags are made of a plant-fiber material that is compostable and does not contain plastics/micro-plastics.
ARE YOUR PRODUCTS SUGAR FREE?
Our hot teas are all sugar free. Our ready-to-drink energy iced teas have 0 sugar flavors (and other, low-sugar flavors). Our powder packs contain a little sugar.
ARE YOUR PRODUCTS GLUTEN FREE?
All Zest products are gluten free.
HOW MANY CALORIES/CARBS ARE IN ZEST PRODUCTS? CAN I DRINK THIS ON A KETO DIET?
Our hot teas have 0 calories and carbs.
HOW MUCH WATER TO USE PER TEA BAG?
One serving is typically brewed with 6-8 oz of water. Some use as much as 12-15oz of water for the same amount of tea so it’s completely up to your personal preferences. We recommend starting with the standard measurements and experimenting to see what you like best.
FOR HOW LONG SHOULD I BREW THE TEA?
Use near-boiling water (freshly boiled water) and brew the tea for 3-4 min if brewing Green Tea, or 4-5 min if brewing Black Tea.

Customer Reviews

Based on 242 reviews
87%
(210)
9%
(21)
2%
(5)
2%
(4)
1%
(2)
J
Joseph M.
Zest is bout it…

Great taste & great bump, especially cold…low to no artificial taste…it’s an investment…

d
dean r.
some caffeine effects noted

some caffeine effects noted

B
Brian G.
Love the teas. Especially pomegranate

Love the teas. Especially pomegranate mojito and blue lady. It's my morning routine

G
Gloria C.
Mrs. Caner

drink it every day, love it

Y
Yazed M.
Zest's Unsolved Issue

the same issue with the pouch for the Earl Grey, the bergamot oil blotted it from inside out, and zip lock is either loose, or most of the time detached and brittled. Clearly Zest is pinching every penny off of the packaging! intuitively, loose leave should not be packed in those plastic bags, beside being harmful and eco-UNfriendly, it does not prevent the leaves from any crushes during the transporting process.