Caffeine & Sleep
Tea

Caffeine in English Breakfast Tea

50mg
per 8 oz
≈ 1 coffee≈ 1 Red Bull13% of FDA daily max

Is that a lot?

English Breakfast Tea is 13% of the FDA’s recommended daily maximum, in a single 8 oz.

Green tea
28 mg
English Breakfast Tea
50 mg
Espresso
63 mg
Red Bull
80 mg
Coffee
95 mg
FDA daily max · 400mg
Before bed

When can I drink English Breakfast Tea and still sleep?

Your English Breakfast Tea cutoff
You drink it at
Bedtime
English Breakfast Tea · 50 mg · assuming an average ~5 h half-life
At bedtime
16 mg
close to optimal
Latest safe English Breakfast Tea: 11:00 PM

How much caffeine is in English Breakfast Tea?

English Breakfast is a robust black tea blend carrying about 50 mg of caffeine per cup, a solid half of a coffee's load. It's built to be brisk and full-bodied, the classic morning brew.

ServingCaffeineSugar
8 oz50 mg0 g

Robust black tea blend; ~40–70 mg.

Will English Breakfast Tea affect your sleep?

At 50 mg, English Breakfast sits right at the threshold and dips below within an hour. An afternoon cup is generally clear by bedtime, though a strong, late steep can register for sensitive people.

Source: USDA / published assays

Related drinks

English Breakfast Tea & sleep — FAQ

At about 50 mg it sits right at the threshold, so a late-afternoon cup usually clears by bedtime, but a strong evening steep might keep sensitive sleepers up.

English Breakfast Tea has 50 mg per 8 oz — about 13% of the FDA’s 400 mg daily maximum for healthy adults. That’s roughly 1 cup of coffee.

It depends on your bedtime and how fast you clear caffeine. Use the calculator above to see when English Breakfast Tea drops below the ~50 mg “ok to sleep” threshold for your bedtime.

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