An amino acid found almost exclusively in the tea plant. It promotes calm alertness — focus without the jitters — and is most concentrated in shade-grown leaves like matcha and sencha.

Which tea is best for the evening?

Chamomile Nights is fully caffeine-free and built for the last hour of the day. If you want true leaf after dark, Smoked Lapsang sits gently at 40mg.

Green tea vs matcha — what's stronger?

Matcha, decisively: roughly three times the caffeine and many times the L-theanine of a steeped green, because you drink the leaf itself rather than an infusion of it.

How do I store tea in UAE heat?

Airtight, dark, and far from the kettle's steam — never the fridge. Our tins are built for exactly this climate.

Which RUKN tea gifts best?

The Tea Box with 8 Teas — one of every mood in this table, boxed with tasting cards. For matcha drinkers, the Ceremonial Matcha Gift Set.

The Tea Guide

The House of RUKN Tea Guide compares teas by type, taste, caffeine level, L-theanine and polyphenol content — including varieties we don’t stock yet — so you can choose by science or by mood. Sort any column, filter by moment, and find the leaf that fits your morning clarity, your afternoon pause, or your evening majlis.

The Matrix

The Tea Guide

Rows marked “Reference” are here to help you compare — we don’t stock them yet.

Type

Time of day

Caffeine

Highlight differences

					Time of Day	Taste	Brew (g · min · °C)	Shop
Ceremonial Matcha	Matcha	Morning	Umami · sweet grass	70 mg70 mg / cup4 / 5 — 70 mg	40 mg40 mg / cup5 / 5 — 40 mg	220 mg220 mg / cup5 / 5 — 220 mg	2g · 1 min · 75°C	Shop
Ceylon BreakfastReference — not sold yet	Black	Morning	Brisk · malty	55 mg55 mg / cup4 / 5 — 55 mg	12 mg12 mg / cup2 / 5 — 12 mg	130 mg130 mg / cup3 / 5 — 130 mg	2g · 4 min · 95°C	Not available
Chamomile NightsReference — not sold yet	Herbal	Evening	Floral · apple-soft	0 mg0 mg / cup0 / 5 — 0 mg	0 mg0 mg / cup0 / 5 — 0 mg	90 mg90 mg / cup2 / 5 — 90 mg	3g · 5 min · 100°C	Not available
Jasmine GreenReference — not sold yet	Green	Afternoon	Floral · jasmine	30 mg30 mg / cup2 / 5 — 30 mg	25 mg25 mg / cup4 / 5 — 25 mg	160 mg160 mg / cup4 / 5 — 160 mg	2g · 3 min · 80°C	Not available
Milky OolongIn the Tea Box	Oolong	Afternoon	Sweet · creamy orchid	30 mg30 mg / cup2 / 5 — 30 mg	20 mg20 mg / cup3 / 5 — 20 mg	150 mg150 mg / cup3 / 5 — 150 mg	3g · 3 min · 90°C	In the Tea Box
Moroccan MintIn the Tea Box	Green	Anytime	Fresh · cool mint	20 mg20 mg / cup2 / 5 — 20 mg	18 mg18 mg / cup3 / 5 — 18 mg	140 mg140 mg / cup3 / 5 — 140 mg	2g · 3 min · 85°C	In the Tea Box
Pure Ceylon — Loose Tin	Black	Morning	Malty · citrus peel	50 mg50 mg / cup3 / 5 — 50 mg	12 mg12 mg / cup2 / 5 — 12 mg	140 mg140 mg / cup3 / 5 — 140 mg	2g · 5 min · 95°C	Shop
Pure Ceylon — Tea Bags	Black	Morning	Malty · honeyed	45 mg45 mg / cup3 / 5 — 45 mg	10 mg10 mg / cup2 / 5 — 10 mg	120 mg120 mg / cup3 / 5 — 120 mg	1 bag · 4 min · 95°C	Shop
Rose Petal BlackReference — not sold yet	Black	Afternoon	Floral · soft honey	40 mg40 mg / cup3 / 5 — 40 mg	15 mg15 mg / cup3 / 5 — 15 mg	125 mg125 mg / cup3 / 5 — 125 mg	2g · 4 min · 90°C	Not available
RUKN Tea Gift Box	Black	Anytime	Sweet · honeyed · spiced	35 mg35 mg / cup2 / 5 — 35 mg	12 mg12 mg / cup2 / 5 — 12 mg	125 mg125 mg / cup3 / 5 — 125 mg	2g · 4 min · 95°C	Shop
Sencha UjiReference — not sold yet	Green	Morning	Fresh · marine	25 mg25 mg / cup2 / 5 — 25 mg	20 mg20 mg / cup4 / 5 — 20 mg	170 mg170 mg / cup4 / 5 — 170 mg	2g · 2 min · 72°C	Not available
Smoked LapsangReference — not sold yet	Black	Evening	Smoky · pine ember	40 mg40 mg / cup3 / 5 — 40 mg	9 mg9 mg / cup2 / 5 — 9 mg	120 mg120 mg / cup3 / 5 — 120 mg	2g · 4 min · 95°C	Not available
Tea Box with 8 Teas	Black	Anytime	Floral · malty · smoky · fresh	35 mg35 mg / cup2 / 5 — 35 mg	15 mg15 mg / cup3 / 5 — 15 mg	130 mg130 mg / cup3 / 5 — 130 mg	2g · 4 min · 90°C	Shop

The Science

How to read this table.

Caffeine

Most RUKN teas carry 30–60mg per cup, against 95mg in a coffee. Black teas lead; matcha delivers the most per serving because you drink the whole leaf.

Matcha vs green tea

L-Theanine

The calm-alertness amino acid, found almost only in tea. It smooths caffeine's edge into steady focus — highest in shade-grown matcha and sencha, gentle in evening herbals.

What is L-theanine?

Polyphenols

Antioxidants that peak in green tea and matcha. Water above 85°C extracts more of them — and more bitterness. Brew cooler, steep a little longer.

Water temperature guide

Brewing Masterclass

The five numbers of a perfect cup.

Water temperature

65°C — 100°C

MatchaGreenOolongBlackHerbal

From 65°C sencha to a rolling herbal boil — heat decides sweetness or bitterness.

Steep time

Two to six minutes by leaf. Set a timer; the leaf keeps its appointments.

Leaf to water

2g per 200ml cup — a heaped teaspoon, weighed once and remembered.

Vessel

Clay for one dedicated tea; glass when the liquor is the show.

Re-steeps

Oolong pours up to five times; each round softer than the last.

Questions

Guide questions, answered.

Ceremonial matcha, at roughly 70mg per serving — you consume the entire leaf. Among brewed teas, our Ceylon Breakfast leads at about 55mg per cup; coffee sits near 95mg.

Shop Ceremonial Matcha

Still deciding?

Four questions and we'll point you to one cup.

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