How much caffeine is in Bigelow Peak Energy Plus?
One cup (size not stated) of Bigelow Peak Energy Plus has 75 mg of caffeine.
That's about three quarters of a cup of brewed coffee, and 19% of the 400 mg a day the FDA cites for most healthy adults.
Source: bigelowtea.com · checked 10 Nov 2026
When did you have it?
Had at 3 pm, about 26 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.
Latest time to drink it
For an 11 pm bedtime, most people should finish one cup (size not stated) of Bigelow Peak Energy Plus by about 7:40 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 | 12:40 pm | 5:40 pm | Any time |
| 10 pm | 1:40 pm | 6:40 pm | Any time |
| 11 pm | 2:40 pm | 7:40 pm | Any time |
| Midnight | 3:40 pm | 8:40 pm | Any time |
| 1 am | 4:40 pm | 9:40 pm | Any time |
For one cup (size not stated) of Bigelow Peak Energy Plus, 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 one cup (size not stated) of Bigelow Peak Energy Plus peaks in your blood about 70 minutes after you start it, at roughly 64 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 | 52 mg | 34 mg | 23 mg | 15 mg |
So one had at 3 pm leaves about 26 mg at 11 pm. How long caffeine lasts explains the curve.
How it compares
Bigelow Peak Energy Plus is stronger than 89% of the 38 teas we track, by caffeine per serving.
To reach 400 mg in a day you would need about 5½ of these.
Less caffeine
- Chick-fil-A Iced Tea 72 mg, Medium
- Yerba Mate 40 to 80 mg, 6 fl oz cup
- Gold Peak Unsweetened Black Tea 50 mg, 18.5 fl oz bottle
Same caffeine: Bigelow American Breakfast Tea.
FAQ
Is Bigelow Peak Energy Plus high in caffeine?
It is moderate. One cup (size not stated) of Bigelow Peak Energy Plus has 75 mg, which is 79% of the 95 mg in an 8 fl oz cup of brewed coffee.
Can I drink Bigelow Peak Energy Plus at night?
Earlier is better. Had at 7 pm, it leaves about 45 mg in an average adult at an 11 pm bedtime. The latest time for an 11 pm bedtime is about 7:40 pm.
How long does the caffeine in Bigelow Peak Energy Plus last?
It peaks about 70 minutes after you start it. Of the 75 mg, about 34 mg is still in you 6 hours later and 15 mg after 12 hours, for an average adult with a 5-hour half-life.
Does Bigelow Peak Energy Plus have more caffeine than a cup of coffee?
No. One cup (size not stated) of Bigelow Peak Energy Plus has 75 mg; an 8 fl oz cup of coffee has 95 mg.
Method and limits
The caffeine figure comes from bigelowtea.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.