Loose Leaf Tea

What Makes Our Loose Leaf Tea Different?

We start with premium tea leaves, add real spices and natural fruit pieces, then boost the caffeine using natural tea extract. Every Zest high caffeine loose leaf tea delivers up to 150mg of plant-powered caffeine per cup, balanced with L-Theanine already present in the leaf. Something worth getting out of bed for.

Our Top Loose Leaf Teas

Zest does offer loose leaf, and the caffeinated options are worth knowing about. Here are the top picks:

Blue Lady

Blue Lady layers hibiscus, orange peel, and cornflower petals over a South Indian Orange Pekoe black tea base, finished with natural passionfruit, orange, and lemon flavors. As striking to look at as it is to drink. Up to 150mg of plant-powered caffeine, no jitters, no afternoon cliff. Good hot. Great iced.

Pomegranate Mojito

Peppermint, lime, and pomegranate on a green tea base - crisp, bright, and refreshing in a way that makes you actually glad your alarm went off. It delivers 135mg of plant-powered caffeine smoothly enough that you won't notice the jitters that aren't there. Cold brew it overnight and you've got iced tea waiting before your alarm goes off.

Superberry Samba

Açai and the superfruit squad just hit the dance floor. This green tea blend layers safflower petals and natural acai, strawberry, and passionfruit flavors for a cup that's light, bright, and 135mg of caffeine ready to get the day moving. Bring your own beach chair.

Earl Grey

Most Earl Grey teas are pleasant. This one is productive. Built on a South Indian Flowery Orange Pekoe black tea base that actually carries the bergamot rather than disappears behind it. The classic citrusy floral character you'd expect - paired with 150mg of natural caffeine instead of the usual 47mg. Classic in the cup, overachiever in the mug.

Cinnamon Apple

You'll swear you popped a pie in the oven. Real cinnamon chips and apple pieces folded into a premium black tea base - the kind of cup that makes the whole kitchen smell better than whatever's actually on the stove. Warm, spiced, and built around 150mg of natural caffeine. The most comforting way to start a Monday.

Spicy Masala Chai

According to Indian mythology, the demigod Lakshmana was resurrected by a magical herbal elixir — the first chai. The Feds won't let us say our Spicy Masala Chai can revive the dead, but this infusion of cardamom seeds, ginger root, cinnamon chips, and cloves packs a punch that some would call divine. When those spices expand in your infuser, the flavor is noticeably rounder than anything a bag produces. Bold enough to hold its own with milk. Complex enough to drink black. At 150mg of natural caffeine per cup, it's the most caffeinated chai you're likely to find anywhere.

How to Brew Your Loose Leaf Tea

Switching to loose leaf changes the format, not the process. Four things to know and you're set.

Get the Temperature Right

All the blends are black teas - use near-boiling water and steep 4-5 minutes. Cooler or shorter leaves caffeine and flavor behind.

Measure Once, Adjust Forever

Start with 1 teaspoon per 6-8 oz of water. Adjust to taste - the tea is flexible.

Your Infuser Is Doing Real Work

Give the leaves room. A roomy mesh infuser or French press lets the larger leaf pieces and whole spices expand fully. A cramped strainer means a weaker brew.

Cold Brew Is Always an Option

Add loose leaf to cold water - roughly 1 tsp per cup - and refrigerate overnight. Same caffeine as the hot version. Blue Lady cold brew is particularly worth the patience.