Tazo Tea Caffeine Content: Complete Guide

A standard 240 ml cup of Tazo Chai-style tea contains about 50 mg of caffeine per cup (240 ml).

• 50 mg — approximate caffeine in a 240 ml cup of Tazo Chai-style (chai latte equivalent).
• 47 mg — typical 240 ml black tea (Earl Grey, Awake-style).
• 28 mg — 240 ml green tea (Zen-style estimates).
• 0 mg — many Tazo herbal blends are caffeine-free (240 ml herbal infusion).

How this number is derived

Tazo uses blends of black, green, herbals and powdered matcha across its range. The mg values on this page come from standard beverage caffeine references such as USDA FoodData Central and beverage analyses used by major sources. For practical purposes, Tazo Chai brewed or served as a chai latte tracks with the dataset entry labeled "Chai latte" at 50 mg per 240 ml.

Caffeine levels in popular Tazo teas

Below is a practical mapping: common Tazo products and the closest standard caffeine values. Use these as estimates—actual mg will vary by brew strength, steep time and serving size.

Approximate Tazo product	Typical serving	Caffeine (mg per 240 ml)
Tazo Chai (spiced black tea / chai latte)	240 ml	50 mg
Tazo Awake / English Breakfast / Earl Grey (black tea)	240 ml	47–50 mg (use 47 mg for black/Earl Grey, 50 mg for English Breakfast)
Tazo Zen (green tea)	240 ml	28 mg
Tazo Matcha or matcha blends	240 ml	70 mg (matcha, 1 tsp)
Tazo Passion / herbal infusions	240 ml	0 mg (herbal, caffeine-free)

How caffeine compares to coffee and energy drinks

Tea sits well below most brewed coffees and many energy drinks. If you're swapping Tazo Chai for a coffee, expect roughly one-third to one-half the caffeine per 240 ml compared with drip or espresso-based drinks.

Drink	Serving	Caffeine (mg)
Tazo Chai (estimate)	240 ml	50 mg
Drip coffee	240 ml	96 mg
Pour over	240 ml	145 mg
Cold brew	240 ml	200 mg
Red Bull (250 ml)	250 ml	80 mg
Matcha (1 tsp)	240 ml	70 mg

How long Tazo tea caffeine stays in your system

Caffeine elimination follows a population-average half-life of about 5.7 hours. That means caffeine roughly halves every ~5.7 hours; approximate remaining fractions: after 3 h ≈ 69%, 6 h ≈ 48%, 9 h ≈ 33%, 12 h ≈ 23%.

Time after drinking	From 50 mg (Tazo Chai)	From 70 mg (Matcha)
0 hours	50.0 mg	70.0 mg
3 hours (~69%)	34.5 mg	48.3 mg
6 hours (~48%)	24.0 mg	33.6 mg
9 hours (~33%)	16.5 mg	23.1 mg
12 hours (~23%)	11.5 mg	16.1 mg

Use these numbers to plan timing — for many people, consuming Tazo Chai in the late afternoon can still deliver a measurable stimulant effect at bedtime, especially if you’re sensitive to caffeine.

Decaf and low-caffeine Tazo options

Tazo sells herbal and decaffeinated blends; herbal infusions contain 0 mg caffeine per 240 ml in standard references. Decaffeinated teas typically have only trace caffeine, but may not be fully zero. If you need to strictly avoid caffeine, choose explicitly labeled caffeine-free herbal blends.

What changes the caffeine number?

• Leaf type: black tea and matcha have more caffeine than green and white teas (dataset: black ≈ 47 mg, green ≈ 28 mg, white ≈ 16 mg per 240 ml).
• Steep time and water temperature: longer, hotter steeps extract more caffeine.
• Serving size and concentrate: Tazo chai concentrate or a matcha shot will increase mg per cup; always check packaging or ask a barista.
• Preparation: loose-leaf and stronger bag-to-water ratios raise the caffeine per cup.

Track exact intake with tools like CoffeeLog to total your daily mg and spot patterns.

Health, safety and timing

For healthy adults the FDA cites up to 400 mg/day as generally safe; EFSA and Mayo Clinic provide similar guidance. Pregnant people are typically advised to limit caffeine to about 200 mg/day. The American Academy of Pediatrics discourages routine caffeine use in adolescents. If you have heart conditions, anxiety, or take medications, consult a clinician before changing intake.

Medical caution: this page is informational, not medical advice. For symptoms of overdose (rapid heartbeat, severe agitation, vomiting) or concerns about pregnancy, seek professional help immediately.

Practical tips

• Want less caffeine? Brew for a shorter time, use fewer tea bags, or switch to herbal blends (0 mg).
• Need a stronger pick-me-up? matcha (70 mg per 240 ml) or a small coffee will deliver more caffeine than a chai cup.
• Record cups and mg with CoffeeLog to stay below your personal limit — set 400 mg as a reference for healthy adults, 200 mg for pregnancy per major health organizations.

Sources: USDA FoodData Central (standard beverage caffeine values), FDA guidance on safe daily intake, EFSA and Mayo Clinic guidance on timing and health effects. For product-specific mg check package nutrition or the manufacturer.