Dunkin' Cold Brew contains 260 mg of caffeine per Medium 24 oz (710 ml / 24 oz). That is about 2.7 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg). Concentration: 36.6 mg per 100 ml.
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Dunkin' Cold Brew Caffeine Content by Serving
Figures are for Cold Brew (Dunkin).
| Serving | Volume | Caffeine | Per 100 ml | Level |
|---|---|---|---|---|
| Medium 24 oz | 710 ml / 24 oz | 260 mg | 36.6 mg | High |
Source: caffeine figures from Caffeine Informer (cites dunkindonuts.com cold brew page), accessed 2026-06-11. Values can vary by batch, location, and preparation; check the label or the source for the latest figures.
How Dunkin' Cold Brew Compares to Coffee
At 260 mg per Medium 24 oz, Dunkin' Cold Brew delivers about 2.7 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg). For a wider comparison across drinks, try the caffeine comparison tool or browse the full caffeine database.
When to Stop Drinking Dunkin' Cold Brew Before Bed
With caffeine's median 5-hour half-life, a Medium 24 oz of Dunkin' Cold Brew (260 mg) needs about 11 h 54 min to fall under 50 mg, the level where most people can fall asleep normally. That puts the last call at 10:00 AM (10:00) for a 10 PM bedtime and 11:00 AM (11:00) for an 11 PM bedtime. Individual half-lives range from roughly 2 to 12 hours, so treat these as a starting point.
The Dunkin' Cold Brew sleep cutoff page has last-call times for four bedtimes, and the caffeine half-life calculator personalizes the curve to your metabolism.
