How much caffeine is in Yorkshire Tea?

A 200 ml mug of Yorkshire Tea (brewed 5 min) has 48 mg of caffeine.

That's about half a cup of brewed coffee, and 12% of the 400 mg a day the FDA cites for most healthy adults.

Source: yorkshiretea.co.uk · checked 10 Nov 2026

When did you have it?

Had at 3 pm, about 17 mg is still in you at an 11 pm bedtime. That should not affect most people’s sleep.

Bedtime

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Latest time to drink it

For an 11 pm bedtime, a 200 ml mug of Yorkshire Tea (brewed 5 min) stays under the 50 mg most people sleep fine with, even late in the evening. 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	3:50 pm	Any time	Any time
10 pm	4:50 pm	Any time	Any time
11 pm	5:50 pm	Any time	Any time
Midnight	6:50 pm	Any time	Any time
1 am	7:50 pm	Any time	Any time

For a 200 ml mug of Yorkshire Tea (brewed 5 min), 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 a 200 ml mug of Yorkshire Tea (brewed 5 min) peaks in your blood about 75 minutes after you start it, at roughly 41 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	34 mg	22 mg	15 mg	9.7 mg

So one had at 3 pm leaves about 17 mg at 11 pm. How long caffeine lasts explains the curve.

How it compares

Yorkshire Tea is stronger than 76% of the 38 teas we track, by caffeine per serving.

Per fluid ounce (7.1 mg) it is stronger than 91% of them.

To reach 400 mg in a day you would need about 8½ of these.

Less caffeine

Black Tea 47 mg, 8 fl oz cup
Dona Masala Chai Concentrate 45 mg, 1 serving
Yorkshire Gold 43 mg, 200 ml mug, brewed 5 min

More caffeine

Gold Peak Unsweetened Black Tea 50 mg, 18.5 fl oz bottle
Yerba Mate 40 to 80 mg, 6 fl oz cup
Chick-fil-A Iced Tea 72 mg, Medium

Same caffeine: Matcha.

FAQ

Is Yorkshire Tea high in caffeine?

It is moderate. A 200 ml mug of Yorkshire Tea (brewed 5 min) has 48 mg, which is 51% of the 95 mg in an 8 fl oz cup of brewed coffee.

Can I drink Yorkshire Tea at night?

For most people, yes: even late in the evening a 200 ml mug of Yorkshire Tea (brewed 5 min) stays under 50 mg at an 11 pm bedtime.

How long does the caffeine in Yorkshire Tea last?

It peaks about 75 minutes after you start it. Of the 48 mg, about 22 mg is still in you 6 hours later and 9.7 mg after 12 hours, for an average adult with a 5-hour half-life.

Is there a decaf or lower-caffeine version of Yorkshire Tea?

Yes. Yorkshire Tea Decaf has 1.5 to 2 mg in 200 ml mug, brewed 5 min, 96% less.

Does Yorkshire Tea have more caffeine than a cup of coffee?

No. A 200 ml mug of Yorkshire Tea (brewed 5 min) has 48 mg; an 8 fl oz cup of coffee has 95 mg.

Method and limits

The caffeine figure comes from yorkshiretea.co.uk; 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.