How much caffeine is in Oriental Leaf Oolong (Bottle)?
中文：东方树叶乌龙茶
Caffeine content
65 mg
Typical range: 50–80 mg
per 16.9 fl oz (500 ml)
About this drink
Oriental Leaf (东方树叶) became the breakout sugar-free bottled tea in China — actual brewed tea, not sweetened. The oolong variant has the most caffeine in the lineup; jasmine and pu-erh variants are lower.
Ingredients: Brewed oolong tea, water, vitamin C
When will it clear your system?
65 mg from a 500ml bottle — moderate. Often consumed mid-afternoon as a coffee alternative.
Based on caffeine's 5-hour half-life, a Oriental Leaf Oolong (Bottle) consumed at 2:00 PM drops below the sleep-safe threshold (~20 mg) by approximately 22:30 the same evening.
Where this fits in a daily limit
That's about 33% of the 200 mg pregnancy guideline and 16% of the 400 mg general adult daily limit — comfortably moderate.
See our pregnancy caffeine guide or half-life sleep math for the deep dive.
How it compares
| Drink | Caffeine |
|---|---|
Oriental Leaf Oolong (Bottle) Oriental Leaf (Nongfu Spring) | 65 mg |
| Oriental Leaf Jasmine Tea (Bottle) Oriental Leaf (Nongfu Spring) | 45 mg |
| Nongfu Tea π (Bottle) Nongfu Spring | 40 mg |
| Yuanqi Burning Tea (Bottle) Yuanqi Forest | 65 mg |
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Learn more about SipNoteFrequently asked questions
How much caffeine is in a Oriental Leaf Oolong (Bottle)?
A 16.9 fl oz (500 ml) Oriental Leaf Oolong (Bottle) contains approximately 65 mg of caffeine. Actual values may range from 50 to 80 mg depending on preparation and source variation.
Is Oriental Leaf Oolong (Bottle) safe during pregnancy?
The current ACOG and NHS guideline is under 200 mg of caffeine per day during pregnancy. A Oriental Leaf Oolong (Bottle) fits comfortably within that limit. Always consult your obstetrician for personalized advice.
When should I stop drinking Oriental Leaf Oolong (Bottle) for sleep?
Caffeine has a 5-hour half-life. To have under 20 mg circulating at bedtime (the typical sleep-safe threshold), stop drinking Oriental Leaf Oolong (Bottle) about 9 hours before sleep. 65 mg from a 500ml bottle — moderate. Often consumed mid-afternoon as a coffee alternative.
Oriental Leaf Oolong (Bottle) vs Oriental Leaf Jasmine Tea (Bottle) — which has more caffeine?
Oriental Leaf Oolong (Bottle) contains 65 mg per serving; Oriental Leaf Jasmine Tea (Bottle) contains 45 mg per 16.9 fl oz (500 ml). Oriental Leaf Oolong (Bottle) is the stronger of the two.
Does Oriental Leaf Oolong (Bottle) keep you awake?
65 mg is moderate caffeine. Most people can drink Oriental Leaf Oolong (Bottle) in the afternoon without notable sleep impact.
Caffeine values shown are typical for the listed serving size. Actual content varies by preparation, brewing method, batch, and brand reformulation. Not medical advice — consult a healthcare provider for personalized guidance.