Tag: 8oz cup

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How Many mg of Caffeine Are in an 8oz Cup? The Surprising Truth

Dec 7, 2025 •

4 min read

According to the USDA, a standard 8oz cup of brewed coffee contains approximately 95 mg of caffeine. However, this figure is just an average, and the exact amount of caffeine in an 8oz cup can vary significantly depending on several key factors.