How much caffeine is in Starbucks Mocha Cookie Crumble Frappuccino?
A Grande (16 fl oz) Starbucks Mocha Cookie Crumble Frappuccino has 95 mg of caffeine.
That's about one cup of brewed coffee, and a quarter 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 33 mg is still in you at an 11 pm bedtime. That should not affect most people’s sleep.
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Sizes
| Size | Volume | Caffeine | mg per fl oz |
|---|---|---|---|
| Tall | 12 fl oz (355 ml) | 65 mg | 5.4 |
| Grande shown above | 16 fl oz (473 ml) | 95 mg | 5.9 |
| Venti | 24 fl oz (710 ml) | 130 mg | 5.4 |
Source: starbucks.com · checked 10 Nov 2026
Latest time to drink it
For an 11 pm bedtime, most people should finish a Grande (16 fl oz) Starbucks Mocha Cookie Crumble Frappuccino by about 5:50 pm. 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 | 10:50 am | 3:50 pm | Any time |
| 10 pm | 11:50 am | 4:50 pm | Any time |
| 11 pm | 12:50 pm | 5:50 pm | Any time |
| Midnight | 1:50 pm | 6:50 pm | Any time |
| 1 am | 2:50 pm | 7:50 pm | Any time |
For a Grande (16 fl oz) Starbucks Mocha Cookie Crumble Frappuccino, 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 Mocha Cookie Crumble Frappuccino peaks in your blood about 75 minutes after you start it, at roughly 81 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 | 67 mg | 44 mg | 29 mg | 19 mg |
So one had at 3 pm leaves about 33 mg at 11 pm. How long caffeine lasts explains the curve.
How it compares
Starbucks Mocha Cookie Crumble Frappuccino is stronger than 30% of the 90 coffee-shop drinks we track, by caffeine per serving.
Per fluid ounce (5.9 mg) it is stronger than 31% of them.
To reach 400 mg in a day you would need about 4 of these.
Less caffeine
- Starbucks Caramel Brulée Frappuccino 90 mg, Grande
- Starbucks Caramel Frappuccino 90 mg, Grande
- Starbucks Pistachio Frappuccino 90 mg, Grande
More caffeine
- Dutch Bros Americano 96 mg, Medium
- Dunkin' Refresher 99 mg, Medium
- Starbucks Mocha Frappuccino 100 mg, Grande
Same caffeine: Starbucks Coffee Frappuccino.
FAQ
Is Starbucks Mocha Cookie Crumble Frappuccino high in caffeine?
It is moderate. A Grande (16 fl oz) Starbucks Mocha Cookie Crumble Frappuccino has 95 mg, which is about the same as an 8 fl oz cup of brewed coffee (95 mg).
How much caffeine is in a Tall Starbucks Mocha Cookie Crumble Frappuccino?
A Tall (12 fl oz) Starbucks Mocha Cookie Crumble Frappuccino has 65 mg of caffeine, 30 mg less than a Grande (16 fl oz) Starbucks Mocha Cookie Crumble Frappuccino.
How much caffeine is in a Venti Starbucks Mocha Cookie Crumble Frappuccino?
A Venti (24 fl oz) Starbucks Mocha Cookie Crumble Frappuccino has 130 mg of caffeine, 35 mg more than a Grande (16 fl oz) Starbucks Mocha Cookie Crumble Frappuccino.
Can I drink Starbucks Mocha Cookie Crumble Frappuccino at night?
Not if you want to sleep well. Had at 7 pm, it leaves about 58 mg in an average adult at an 11 pm bedtime, above the 50 mg most people sleep fine with. The latest time for an 11 pm bedtime is about 5:50 pm.
How long does the caffeine in Starbucks Mocha Cookie Crumble Frappuccino last?
It peaks about 75 minutes after you start it. Of the 95 mg, about 44 mg is still in you 6 hours later and 19 mg after 12 hours, for an average adult with a 5-hour half-life.
Does Starbucks Mocha Cookie Crumble Frappuccino have more caffeine than Red Bull?
Yes. A Grande (16 fl oz) Starbucks Mocha Cookie Crumble Frappuccino has 95 mg; an 8.4 fl oz can of Red Bull has 80 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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