Trader Joe's Tea Caffeine: Comprehensive Guide

A typical 240 ml cup of Trader Joe's Moroccan Mint (green-tea–based) contains about 28 mg of caffeine.

• Moroccan Mint (green-tea based): ~28 mg per 240 ml cup (estimate based on green tea).
• Black teas at Trader Joe's average 47–50 mg per 240 ml; matcha is ~70 mg per teaspoon.
• Herbal blends sold as caffeine-free contain 0 mg per 240 ml; read labels to confirm.
• Population-average caffeine half-life ≈5.7 hours; about 48% remains after 6 hours.
• FDA recommends ≤400 mg/day for healthy adults; pregnant people are generally advised to limit to ~200 mg/day.

Does Trader Joe's Moroccan Mint tea have caffeine?

Yes—Trader Joe's Moroccan Mint is typically a green tea blended with peppermint. Using USDA FoodData Central values for green tea, expect about 28 mg of caffeine per 240 ml cup. If the product is a purely herbal mint (no Camellia sinensis), caffeine would be 0 mg; check the ingredient list for "green tea" or "tea leaves."

Trader Joe's tea caffeine: side-by-side comparison

Trader Joe's sells a range of true teas (black, green, white, oolong) and herbal tisanes; the table below uses standard serving values from authoritative datasets (USDA / FoodData Central equivalents) so you can compare typical caffeine per cup.

Tea variety	Serving	Caffeine (mg)
Trader Joe's Moroccan Mint (green-tea based, estimate)	240 ml	28 mg
Green tea	240 ml	28 mg
Jasmine tea (usually green base, estimate)	240 ml	28 mg
Black tea	240 ml	47 mg
English Breakfast	240 ml	50 mg
Earl Grey	240 ml	47 mg
Oolong	240 ml	37 mg
White tea	240 ml	16 mg
Matcha (1 tsp)	240 ml	70 mg
Yerba mate	240 ml	85 mg
Iced tea (bottled)	355 ml	45 mg
Herbal tea (caffeine-free)	240 ml	0 mg

What affects caffeine in a cup?

Tea caffeine is not a fixed label like a pill—these variables matter:

• Leaf type: Camellia sinensis leaves (black, green, oolong, white) contain caffeine; herbal mint does not. Matcha uses whole-leaf powder and delivers more caffeine per scoop (70 mg per tsp in datasets).
• Serving size and concentration: More leaves or a smaller water volume increases mg/serving; bottled iced tea values use different dilution (355 ml = 45 mg in dataset).
• Steep time and temperature: Longer, hotter steeping extracts more caffeine. A bag steeped 5+ minutes yields more caffeine than a 1–2 minute steep.
• Processing and cultivar: Some cultivars and oxidations (black vs green) concentrate caffeine differently; English Breakfast averages 50 mg per 240 ml in standard measurements.

Caffeine decay: how much remains hours after your cup?

Caffeine follows exponential decay with a population-average half-life ≈5.7 hours. Use the standard multipliers: ~69% remains at 3 h, ~48% at 6 h, ~33% at 9 h and ~23% at 12 h. That shows even a small cup contributes to evening caffeine.

Time after drinking	Moroccan Mint (28 mg)	Cold brew (200 mg)
0 hours	28 mg	200 mg
3 hours (~69% remain)	19 mg	138 mg
6 hours (~48% remain)	13 mg	96 mg
9 hours (~33% remain)	9 mg	66 mg
12 hours (~23% remain)	6 mg	46 mg

Health & safety context

For healthy adults the U.S. FDA suggests up to 400 mg/day is generally safe; the European Food Safety Authority and Mayo Clinic offer similar guidance. Pregnant people are commonly advised to limit intake to about 200 mg/day. The American Academy of Pediatrics discourages caffeine for adolescents; keep close watch on sources like tea, coffee, sodas and energy drinks.

Symptoms of excess caffeine include jitteriness, rapid heartbeat, gastrointestinal upset and sleep disruption. In suspected overdose or pregnancy concerns consult a healthcare professional immediately—this page is informational, not medical advice.

Practical tips: measuring, switching, and tracking

To reduce or compare caffeine: use shorter steeps, switch to white tea or herbal blends, or choose decaf. For a clear personal log, measure cup volume and steep time and track totals—apps like CoffeeLog make this automatic and help you compare tea against coffee or energy drinks (dataset examples: drip coffee ~96 mg/240 ml, cold brew 200 mg/240 ml, espresso single 63 mg/30 ml).

If you are sensitive to caffeine, avoid caffeinated tea within ~6 hours of bedtime; the decay table above shows even a single green-tea cup leaves measurable caffeine for many hours.

Bottom line

Trader Joe's Moroccan Mint tea usually contains caffeine because it’s green-tea based—use ~28 mg per 240 ml as a practical estimate. For exact numbers check the product ingredient list and adjust for your cup size and steeping habits; track intake with CoffeeLog or a similar tracker if you rely on precise totals.