effect Classic Energy contains 80 mg of caffeine per 250 ml can (250 ml / 8.5 oz). That is about 84% of the caffeine in a typical 8 oz cup of brewed coffee (about 95 mg). Concentration: 32 mg per 100 ml.
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effect Classic Energy Caffeine Content by Serving
Figures are for effect Classic Energy (MBG Group (effect)).
| Serving | Volume | Caffeine | Per 100 ml | Level |
|---|---|---|---|---|
| 250 ml can | 250 ml / 8.5 oz | 80 mg | 32 mg | Moderate |
| 330 ml can | 330 ml / 11.2 oz | 105.6 mg | 32 mg | Moderate |
Source: caffeine figures from effect official product page, accessed 2026-06-11. Values can vary by batch, location, and preparation; check the label or the source for the latest figures.
How effect Classic Energy Compares to Coffee
At 80 mg per 250 ml can, effect Classic Energy delivers about 84% of the caffeine in 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 effect Classic Energy Before Bed
With caffeine's median 5-hour half-life, a 250 ml can of effect Classic Energy (80 mg) needs about 3 h 24 min to fall under 50 mg, the level where most people can fall asleep normally. That puts the last call at 6:30 PM (18:30) for a 10 PM bedtime and 7:30 PM (19:30) for an 11 PM bedtime. Individual half-lives range from roughly 2 to 12 hours, so treat these as a starting point.
The effect Classic Energy sleep cutoff page has last-call times for four bedtimes, and the caffeine half-life calculator personalizes the curve to your metabolism.
