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Milk Tea / Boba·Chayan

How much caffeine is in Chayan Yuelan Latte?

中文:茶颜悦色幽兰拿铁

Caffeine content

80 mg

Typical range: 60100 mg

per 16 fl oz (473 ml)

About this drink

Chayan's signature drink mixes black tea, fresh milk, cream, and crushed nuts. Caffeine is standard for a black-tea-based milk tea. Often the highest-rated indulgent boba experience but not the highest-caffeine.

Ingredients: Black tea base, fresh milk, cream topping, nuts

When will it clear your system?

80 mg with cream-slowed absorption. A 5pm Yuelan typically clears by bedtime.

Based on caffeine's 5-hour half-life, a Chayan Yuelan Latte consumed at 2:00 PM drops below the sleep-safe threshold (~20 mg) by approximately 00:00 the same evening.

Where this fits in a daily limit

That's about 40% of the 200 mg pregnancy guideline and 20% 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

DrinkCaffeine

Chayan Yuelan Latte

Chayan

80 mg
CoCo Red Tea Macchiato

CoCo

80 mg
Naixue Cheese Tea

Naixue

100 mg

Track your caffeine automatically

Snap a photo of any drink and SipNote logs it. See real-time caffeine on your Apple Watch with a "clear by HH:mm" forecast. $2.99 one-time, no subscription, no account.

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Frequently asked questions

How much caffeine is in a Chayan Yuelan Latte?

A 16 fl oz (473 ml) Chayan Yuelan Latte contains approximately 80 mg of caffeine. Actual values may range from 60 to 100 mg depending on preparation and source variation.

Is Chayan Yuelan Latte safe during pregnancy?

The current ACOG and NHS guideline is under 200 mg of caffeine per day during pregnancy. A Chayan Yuelan Latte fits comfortably within that limit. Always consult your obstetrician for personalized advice.

When should I stop drinking Chayan Yuelan Latte for sleep?

Caffeine has a 5-hour half-life. To have under 20 mg circulating at bedtime (the typical sleep-safe threshold), stop drinking Chayan Yuelan Latte about 10 hours before sleep. 80 mg with cream-slowed absorption. A 5pm Yuelan typically clears by bedtime.

Chayan Yuelan Latte vs CoCo Red Tea Macchiato — which has more caffeine?

Chayan Yuelan Latte contains 80 mg per serving; CoCo Red Tea Macchiato contains 80 mg per 16 fl oz (473 ml). CoCo Red Tea Macchiato is the stronger of the two.

Does Chayan Yuelan Latte keep you awake?

80 mg is moderate caffeine. Most people can drink Chayan Yuelan Latte 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.