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World Tea Expo Top New Product Award

Award-winning High Caffeine energy teas

Premium blends enhanced with natural caffeine and packed with amino acids

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Not Your Average Tea

Zest’s energy tea blends have comparable caffeine levels to coffee, for an energizing kick, and amino acids shown to reduce the crash and boost cognitive functions. The result is a steady and prolonged alertness.

Premium Caffeinated Tea Blends

Zest Tea Ultimate Sampler

Try all four energizing blends for only $45

Most Caffeinated Tea On The Market

Zest Black Tea
Zest Black Tea Caffeine
155 mg/cup

We enhance Zest Teas with a natural tea extract, so our blends have comparable caffeine levels to coffee or about 3x the caffeine levels of traditional teas. Currently, Zest is the tea with the highest caffeine levels on the market.

Our proprietary blending methods allow us to enhance the teas without adversely effecting the flavor of our premium base teas. Our blends are applauded as much for their premium flavors as they are for the enhanced energy levels!

Zest Green Tea
Zest Green Tea Caffeine
135 mg/cup
Coffee Caffeine Level
100-170 mg/cup
Traditional Black Tea
Black Tea Caffeine Level
50 mg/cup
Traditional Green Tea
Green Tea Caffeine Level
25 mg/cup

A healthy and effective coffee substitute

"We felt 'in the zone' almost more clearheaded than we would normally be with coffee... It definitely hits you harder, but I didn't get jittery or anything" -

Focused Energy

The combination of the caffeine and L-Theanine (a rare amino acid) in Zest Tea has a synergistic effect that prolongs the energy levels and creates a more steady alertness. A side effect of the energy moderation is a reduction in the "jitters" and "crash" that typically accompanies caffeinated beverages.  

L-Theanine and Caffeine No Jitters No Crash

Four (4) Pack Sampler

Free Shipping On Orders Over $40

Refills come in standup pouches



Billy Schrero Testimonial

"Tastes great and good energy. Have literally stopped drinking coffee since getting my first batch of zest tea!!"

Billy Schrero

Daniel Rodic Testimonial

"Perks me up 10x better than coffee, amazing!" 

Daniel Rodic

Nick Loadholtes Testimonial

"I know the selling point of Zest Teas are the caffeine, but honestly the flavor is what keeps me coming back. I have never had such a flavorful tea that was not overpowering. This stuff is awesome."

Nick Loadholtes

Daniel Becker Testimonial

"I love coffee but from having my first cup of Zest Tea all I can say is WOW."

Daniel Becker


Zest Blog

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We've referenced the Silk Road a few times in our series on tea productivity rituals. The Silk Road connected civilizations from Asia to Europe...

The Sun Never Sets On The British Tea Empire: England

December 11, 2014

British Tea Rituals

While the origins of tea are deeply rooted in China and East Asia, it's difficult to overstate the importance of the British Empire and India...

Tea's Western Expansion: Mongolia and Vietnam

November 13, 2014

Mongolian Tea Rituals

What do you like to add to your tea? Milk and sugar? Maybe some honey if you have a sore throat? What about barley...