Tea
Caffeine in Oolong Tea
37mg
per 8 oz
9% of FDA daily max
Is that a lot?
Oolong Tea is 9% of the FDA’s recommended daily maximum, in a single 8 oz.
Green tea
Oolong Tea
Espresso
Red Bull
Coffee
FDA daily max · 400mg
Before bed
When can I drink Oolong Tea and still sleep?
Your Oolong Tea cutoff
You drink it at
Bedtime
Oolong Tea · 37 mg · assuming an average ~5 h half-life
At bedtime
12 mg
close to optimal
Latest safe Oolong Tea: 11:00 PM
How much caffeine is in Oolong Tea?
Oolong sits right between green and black tea, with roughly 37 mg of caffeine per cup. It offers a moderate lift, more than green tea's whisper, less than a coffee's shout.
| Serving | Caffeine | Sugar |
|---|---|---|
| 8 oz | 37 mg | 0 g |
Between green and black tea.
Will Oolong Tea affect your sleep?
At 37 mg, oolong starts below the 50 mg threshold and clears within a few hours. An afternoon cup is comfortably gone by bedtime for most people.
Source: USDA FoodData Central