Trader Joe's Tea Caffeine: Comprehensive Guide
By Merey Tleugazin Published November 20, 2025 Updated August 2, 2026 8 min read
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.
How many 240 ml cups of Trader Joe's Moroccan Mint equal one 240 ml cup of drip coffee?
One 240 ml cup of Trader Joe's Moroccan Mint contains about 28 mg of caffeine, and one 240 ml cup of drip coffee contains about 96 mg; therefore you need 96 ÷ 28 ≈ 3.43 cups of Moroccan Mint to match one cup of drip coffee. The arithmetic is: 96 mg ÷ 28 mg = 3.4286, rounded to 3.43 cups, using USDA FoodData Central values for green tea and the dataset value for drip coffee.
An equivalent dose is the number of servings of one beverage that delivers the same total caffeine mass as a single serving of another beverage. This comparison is useful when you want the same stimulant effect but prefer multiple small cups instead of one large coffee; see our side-by-side drink comparisons at caffeine comparison and the broader tea vs coffee guide for context.
How much caffeine accumulates if I drink three cups of Moroccan Mint spaced 3 hours apart?
If you drink three 240 ml cups of Moroccan Mint (28 mg each) at t=0 h, t=3 h and t=6 h, the total caffeine immediately after the third cup is the sum of the remaining caffeine from the first two cups plus 28 mg from the third; using the site decay model (population-average half-life 5.7 hours) that total is 28×0.5^(6/5.7) + 28×0.5^(3/5.7) + 28×0.5^(0/5.7) ≈ 13.44 + 19.32 + 28 = 60.76 mg. The calculation uses the first-order elimination formula D × 0.5^(hours/5.7) where hours is time since each dose and D is 28 mg (site decay model half-life = 5.7 h).
An accumulated dose is the instantaneous sum of residual caffeine from prior drinks plus any newly consumed caffeine; this is how low-per-cup drinks can produce a moderate total by mid-day. If you want to model other schedules, use our caffeine half-life calculator and enter 28 mg per cup and 5.7 hours for the half-life to reproduce these sums automatically.
How many cups will push me past pregnancy or adolescent limits?
One 240 ml cup of Trader Joe's Moroccan Mint has about 28 mg of caffeine (USDA FoodData Central value for green tea); the commonly recommended pregnancy limit is ~200 mg/day and the conservative upper bound for a single dose is 200 mg, per the European Food Safety Authority (EFSA 2015), so 200 ÷ 28 ≈ 7.14 cups would exceed that pregnancy recommendation. For healthy adults the U.S. Food and Drug Administration states a general guideline of up to 400 mg/day, which equals 400 ÷ 28 ≈ 14.29 cups of Moroccan Mint.
Pregnancy caffeine limit is the recommended maximum daily caffeine intake during pregnancy set to reduce risk concerns; see EFSA's 2015 opinion and ACOG/NHS guidance for clinical context. If you are pregnant or advising adolescents, consult the medical-service guidance in our pregnancy safety guide and our teenager safety guide—the simple arithmetic (200 mg ÷ 28 mg) gives you the practical cup cutoffs.
How long until caffeine from one cup of Moroccan Mint falls below a trivial level like 5 mg?
Using the site decay model half-life of 5.7 hours, one 240 ml cup (28 mg) drops below 5 mg when 28 × 0.5^(hours/5.7) ≤ 5, which solves to hours ≥ 5.7 × log2(28/5) ≈ 14.2 hours. The algebra shown is: 0.5^(h/5.7) ≤ 5/28 = 0.17857 → h/5.7 ≥ log2(1/0.17857) ≈ 2.486 → h ≥ 2.486×5.7 ≈ 14.17 h (site decay model half-life = 5.7 h).
A trivial level is a residual caffeine mass low enough to be unlikely to affect sleep or produce perceptible stimulation; researchers showed that 400 mg taken 6 hours before bedtime reduces objective sleep by more than an hour (Drake et al., Journal of Clinical Sleep Medicine 2013), so using the arithmetic above you can estimate whether a small afternoon cup will be below perceptual thresholds by bedtime. If you need a quick bedtime cutoff, try our last-cup-before-bed calculator and enter 28 mg to see the recommended latest drinking time for your sleep schedule.
Is Trader Joe's Moroccan Mint a low-caffeine choice compared with other common drinks?
Yes: at about 28 mg per 240 ml cup (USDA FoodData Central), Moroccan Mint is lower in caffeine than a 240 ml black tea (~47 mg), a 240 ml drip coffee (~96 mg), or a 240 ml cold brew (~200 mg). The dataset comparisons (black tea 47 mg, drip coffee 96 mg, cold brew 200 mg) make Moroccan Mint a genuinely low-caffeine brewed tea option relative to these common drinks.
A low-caffeine drink is one that supplies substantially less caffeine per serving than the beverages typically used for an energy boost; if you want even lower caffeine, switch to white tea (16 mg per 240 ml) or a guaranteed herbal tisane (0 mg per 240 ml) and see our caffeine-free herbal tea guide and green tea caffeine guide for alternatives. Concrete examples: one Red Bull (250 ml, 80 mg) equals roughly 80 ÷ 28 ≈ 2.86 cups of Moroccan Mint, and one matcha scoop (70 mg) equals 70 ÷ 28 ≈ 2.5 cups of Moroccan Mint; these conversions let you compare stimulant load without guessing.
Bottom line
Trader Joe's Moroccan Mint is typically a green-tea blend and contains about 28 mg of caffeine per 240 ml cup (USDA FoodData Central value). That 28 mg number is small on a per-cup basis: you need about 3.43 cups of Moroccan Mint to match a single 240 ml cup of drip coffee (96 mg), because 96 ÷ 28 ≈ 3.43.
Using the site decay model (population-average half-life 5.7 hours), a single 28 mg cup leaves roughly 28 × 0.5^(6/5.7) ≈ 13.44 mg after 6 hours and falls below 5 mg only after about 14.2 hours (28 × 0.5^(14.17/5.7) ≈ 5 mg). For practical daily limits, the U.S. FDA's general guidance is up to 400 mg/day (400 ÷ 28 ≈ 14.29 cups of Moroccan Mint) and EFSA's 2015 opinion and pregnancy guidance place a common pregnancy cutoff at ~200 mg/day (200 ÷ 28 ≈ 7.14 cups); compare these limits using our safe daily limit tool.
- If you sip three cups spaced 3 hours apart, immediate caffeine after the last cup is 28×0.5^(6/5.7) + 28×0.5^(3/5.7) + 28 ≈ 60.76 mg (site decay model arithmetic shown above).
- If you need a low-caffeine evening drink, Moroccan Mint is a reasonable choice but remember residual caffeine can persist many hours—use our last-cup-before-bed tool to pick a cutoff for your bedtime.
- For alternatives and exact per-drink comparisons see the guides on tea vs coffee, black tea caffeine and caffeine-free herbal teas.
Frequently asked questions
Does Trader Joe's Moroccan Mint tea have caffeine?
Yes—most Moroccan Mint blends at Trader Joe's are green-tea based and contain about 28 mg per 240 ml cup (estimate based on standard green tea values). If the label lists only peppermint or "herbal," it's 0 mg.
How does Moroccan Mint compare to black tea in caffeine?
Moroccan Mint (green tea) is ~28 mg per 240 ml versus black teas at ~47–50 mg per 240 ml, so black tea generally has about 70–80% more caffeine per cup.
Can I drink Moroccan Mint in the evening without disturbing sleep?
Caffeine halves roughly every 5.7 hours; a 28 mg cup leaves ~13 mg after 6 hours. Sensitive sleepers should avoid it within 6 hours of bedtime, though many can tolerate it earlier in the day.
Is Trader Joe's Moroccan Mint safe in pregnancy?
Pregnant people are commonly advised to limit caffeine to about 200 mg/day. A single 240 ml cup at ~28 mg is within that limit, but total daily intake from all sources matters—check with your healthcare provider.
Does steep time change caffeine in Moroccan Mint?
Yes—longer and hotter steeping extracts more caffeine. A quick 1–2 minute steep yields less caffeine than a 5+ minute steep; bagged tea often releases caffeine faster than whole-leaf but quantity depends on leaf amount.
How can I track my tea caffeine accurately?
Measure cup volume, note steep time and count servings. Use a tracker like CoffeeLog to log entries and sum caffeine from tea, coffee and snacks—this is the most reliable way to stay within recommended limits.
Will I get caffeine withdrawal if I switch from coffee to Moroccan Mint?
Withdrawal can begin 12–24 hours after stopping a habitual higher caffeine intake and peak at 24–48 hours (NIH Office of Dietary Supplements); switching from multiple daily coffees (~96 mg each) to single 28 mg cups can trigger mild withdrawal if your prior daily total exceeded your usual tolerance.