An espresso shot typically contains 63 milligrams of caffeine on average for a 1-ounce (30 mL) serving. However, this amount can vary slightly depending on factors such as the type of coffee bean, grind size, and brewing method.
For comparison:
- A double shot of espresso (2 ounces) would have approximately 126 milligrams of caffeine.
- Espresso has a higher caffeine concentration per ounce compared to drip coffee, but due to the smaller serving size, it usually contains less caffeine overall.
