Jasmine Tea: Understanding Caffeine Levels
Most jasmine tea cups contain about 28 mg of caffeine per 240 ml when the scenting is done on a green-tea base.
- Typical jasmine green tea (240 ml) ≈ 28 mg caffeine.
- Jasmine made from black tea can contain ≈ 47 mg per 240 ml; oolong and white bases are ≈ 37 mg and 16 mg.
- Herbal (true caffeine-free) alternatives contain 0 mg; decaffeinated tea carries a small residual amount (estimate).
- Population-average caffeine half-life ≈ 5.7 hours: plan intake accordingly (FDA limit for healthy adults ≈ 400 mg/day).
Does jasmine tea contain caffeine?
Yes — jasmine is a scenting process, not a plant. The final caffeine level equals the tea leaf used as the base. Commonly jasmine is scented over green tea, so a standard 240 ml cup will have the same caffeine as green tea in the dataset: 28 mg. If the base is black, oolong or white tea, expect the corresponding caffeine values from those bases.
Caffeine levels in different jasmine tea types
Use the base tea's numbers below to estimate jasmine tea caffeine per 240 ml cup. These are exact values from the provided dataset.
| Jasmine variant (240 ml) | Caffeine (mg) |
|---|---|
| Jasmine (green-tea base) | 28 |
| Jasmine (white-tea base) | 16 |
| Jasmine (oolong base) | 37 |
| Jasmine (black-tea base) | 47 |
| Herbal (caffeine-free) | 0 |
How jasmine tea compares to other drinks
Relative scale helps put jasmine's caffeine in context — a jasmine green cup is mild compared with coffee and most energy drinks.
| Beverage (serving) | Caffeine (mg) |
|---|---|
| Jasmine (green base, 240 ml) | 28 |
| Black tea (240 ml) | 47 |
| Drip coffee (240 ml) | 96 |
| Espresso (single, 30 ml) | 63 |
| Cold brew (240 ml) | 200 |
| Herbal tea (240 ml) | 0 |
Caffeine decay: how much remains after drinking
Use the population-average half-life of about 5.7 hours to estimate remaining caffeine. Below are concrete computations from two common jasmine doses (exact input values from the dataset): 28 mg (green-base) and 47 mg (black-base). Percent remaining: 0 h =100%, 3 h ≈69%, 6 h ≈48%, 9 h ≈33%, 12 h ≈23%.
| Time after dose | From 28 mg (mg left) | From 47 mg (mg left) |
|---|---|---|
| 0 h | 28 | 47 |
| 3 h (~69%) | ~19 | ~32 |
| 6 h (~48%) | ~13 | ~23 |
| 9 h (~33%) | ~9 | ~16 |
| 12 h (~23%) | ~6 | ~11 |
Practical takeaway
If you drink a 240 ml cup of jasmine green tea late afternoon, roughly half the caffeine remains after ~6 hours — plan your last cup at least 6 hours before bedtime to lower sleep disruption, given the 5.7-hour average half-life.
What affects caffeine in jasmine tea?
Primary drivers are the base tea species and preparation:
- Base leaf (green, white, oolong, black) determines most of the caffeine — use the dataset values above.
- Leaf amount and brew time: longer steeping and more leaves raise extraction.
- Water temperature and leaf particle size: boiling water and broken leaves extract faster.
- Scenting does not add caffeine — jasmine aroma comes from flowers, not caffeine.
Health, safety and timing
For healthy adults the FDA and EFSA note about 400 mg/day as a commonly cited limit; pregnant people are advised to limit to about 200 mg/day. The American Academy of Pediatrics discourages routine caffeine for adolescents. If you have heart disease, anxiety, pregnancy concerns or are breastfeeding, consult a clinician before changing intake.
Caffeine-free and lower-caffeine options
True caffeine-free options are herbal teas (dataset: 0 mg per 240 ml). Decaffeinated tea exists for jasmine (leaves decaffeinated before scenting); residual caffeine varies by process — often very low but not always zero, so treat residual amounts as estimates. If you need precise tracking, log each cup in an app like CoffeeLog to sum daily totals and see timing relative to sleep.
Quick tips for choosing jasmine tea
- Prefer jasmine green tea for a low-caffeine aromatic cup (~28 mg/240 ml).
- Choose white-base jasmine for the lowest caffeine among common bases (~16 mg/240 ml).
- Opt for herbal floral blends or decaf-labeled jasmine if you need no or minimal caffeine.
Information here is for educational purposes only, not medical advice. For personal recommendations about pregnancy, medications or caffeine sensitivity, consult your healthcare provider. Sources used include USDA data compilations, FDA and EFSA guidance, and clinical advisory positions such as the American Academy of Pediatrics and Mayo Clinic.
Frequently asked questions
Do jasmine tea have caffeine?
Yes—jasmine itself is a scent, not the source of caffeine. A typical jasmine green tea cup (240 ml) has about 28 mg of caffeine; the exact amount depends on the base tea (green, white, oolong, black).
How much caffeine is in jasmine green tea?
A 240 ml cup of jasmine made from green tea contains approximately 28 mg of caffeine (dataset value).
Is jasmine tea caffeine free?
Not normally. True caffeine-free options are herbal tisanes (0 mg per 240 ml). Decaffeinated jasmine is available but may contain small residual caffeine; amounts vary by decaffeination method.
Will jasmine tea keep me awake at night?
Possibly—caffeine has a population-average half-life of ~5.7 hours. A 28 mg cup leaves roughly 13 mg after 6 hours; avoid late cups if you are sensitive and stop about 6 hours before bedtime.
How does jasmine compare to coffee for caffeine?
Jasmine green tea (~28 mg/240 ml) is much lower than drip coffee (96 mg/240 ml) or cold brew (200 mg/240 ml). Use the dataset values to compare specific drinks and total daily intake.
Can I track jasmine tea caffeine automatically?
Yes—tracking apps like CoffeeLog let you log cups, sum caffeine mg across beverages, and view timing so you can manage daily limits and sleep timing.