How much caffeine is in Starbucks Chamomile Mint Blossom Tea?
A Grande (16 fl oz) Starbucks Chamomile Mint Blossom Tea has 25 mg of caffeine.
That's about a quarter of a cup of brewed coffee, and 6% of the 400 mg a day the FDA cites for most healthy adults.
Source: starbucks.com · checked 10 Nov 2026
When did you have it?
Had at 3 pm, about 8.8 mg is still in you at an 11 pm bedtime. That should not affect most people’s sleep.
Your whole day, every drink, in the free CaffeineIQ check. The iPhone app is coming soon.
Sizes
| Size | Volume | Caffeine | mg per fl oz |
|---|---|---|---|
| Short | 8 fl oz (237 ml) | 16 to 25 mg | 2.5 |
| Tall | 12 fl oz (355 ml) | 16 to 25 mg | 1.7 |
| Grande shown above | 16 fl oz (473 ml) | 25 mg | 1.6 |
| Venti | 20 fl oz (591 ml) | 25 mg | 1.3 |
Source: starbucks.com · checked 10 Nov 2026
Latest time to drink it
For an 11 pm bedtime, a Grande (16 fl oz) Starbucks Chamomile Mint Blossom Tea stays under the 50 mg most people sleep fine with, even late in the evening. The table works it out for other bedtimes and for how sensitive you are: it is the latest time to start one so that the caffeine left stays under the line all night.
| Bedtime | Very sensitive under 25 mg | Average under 50 mg | Not very sensitive under 100 mg |
|---|---|---|---|
| 9 pm | Any time | Any time | Any time |
| 10 pm | Any time | Any time | Any time |
| 11 pm | Any time | Any time | Any time |
| Midnight | Any time | Any time | Any time |
| 1 am | Any time | Any time | Any time |
For a Grande (16 fl oz) Starbucks Chamomile Mint Blossom Tea, average clearance (half-life 5 h), 8 hours of sleep. "Any time" means even one at bedtime stays under the line.
How long it lasts
The caffeine from a Grande (16 fl oz) Starbucks Chamomile Mint Blossom Tea peaks in your blood about 75 minutes after you start it, at roughly 21 mg. Half of it is gone in about 5 hours for an average adult; that ranges from roughly 3 to 7 hours, and longer in pregnancy or with some medicines.
| Time after | 3 hours | 6 hours | 9 hours | 12 hours |
|---|---|---|---|---|
| Still in you | 18 mg | 12 mg | 7.6 mg | 5 mg |
So one had at 3 pm leaves about 8.8 mg at 11 pm. How long caffeine lasts explains the curve.
How it compares
Starbucks Chamomile Mint Blossom Tea is stronger than 32% of the 38 teas we track, by caffeine per serving.
Per fluid ounce (1.6 mg) it is stronger than 25% of them.
To reach 400 mg in a day you would need about 16 of these.
Less caffeine
- Gold Peak Sweet Tea 20 mg, 16.9 fl oz bottle
- Hojicha 20 mg, 100 ml, brewed
- Sencha 20 mg, 100 ml, brewed
More caffeine
- Green Tea 28 mg, 8 fl oz cup
- Jade Leaf Matcha 16 to 40 mg, 1 serving, powder
- Starbucks Iced Black Tea 25 to 30 mg, Grande
Same caffeine: Gold Peak Chai Tea Latte.
FAQ
Is Starbucks Chamomile Mint Blossom Tea high in caffeine?
No, it is low. A Grande (16 fl oz) Starbucks Chamomile Mint Blossom Tea has 25 mg, which is 26% of the 95 mg in an 8 fl oz cup of brewed coffee.
How much caffeine is in a Short Starbucks Chamomile Mint Blossom Tea?
A Short (8 fl oz) Starbucks Chamomile Mint Blossom Tea has 16 to 25 mg of caffeine, 5 mg less than a Grande (16 fl oz) Starbucks Chamomile Mint Blossom Tea.
How much caffeine is in a Venti Starbucks Chamomile Mint Blossom Tea?
A Venti (20 fl oz) Starbucks Chamomile Mint Blossom Tea has 25 mg of caffeine, the same as than a Grande (16 fl oz) Starbucks Chamomile Mint Blossom Tea.
Can I drink Starbucks Chamomile Mint Blossom Tea at night?
For most people, yes: even late in the evening a Grande (16 fl oz) Starbucks Chamomile Mint Blossom Tea stays under 50 mg at an 11 pm bedtime.
How long does the caffeine in Starbucks Chamomile Mint Blossom Tea last?
It peaks about 75 minutes after you start it. Of the 25 mg, about 12 mg is still in you 6 hours later and 5 mg after 12 hours, for an average adult with a 5-hour half-life.
Does Starbucks Chamomile Mint Blossom Tea have more caffeine than a cup of coffee?
No. A Grande (16 fl oz) Starbucks Chamomile Mint Blossom Tea has 25 mg; an 8 fl oz cup of coffee has 95 mg.
Method and limits
The caffeine figure comes from starbucks.com; recipes, brewing and batches vary, so a real serving can differ. The curves use a standard one-compartment model with an average 5-hour half-life and a sleep-friendly line of 50 mg; your own body may clear caffeine faster or slower. How it works has the details.
These are estimates for information, not medical advice.
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