- Drip-brewed coffee: An average 8-ounce (240 ml) cup of drip-brewed coffee typically contains around 95 milligrams of caffeine. However, it’s worth mentioning that the caffeine content can range from 65 to 120 milligrams depending on the strength of the brew.
- Espresso: A single shot of espresso, which is usually about 1 ounce (30 ml) in volume, contains approximately 63 milligrams of caffeine. For those who prefer a double shot of espresso, the caffeine content would be roughly 125 milligrams. It’s important to note that espresso is more concentrated compared to drip coffee, so even though the serving size is smaller, the caffeine content is often higher.
- Instant coffee: Instant coffee generally contains slightly less caffeine compared to drip-brewed coffee. An 8-ounce cup of instant coffee typically has around 63 milligrams of caffeine.
- Decaffeinated coffee: While decaffeinated coffee is not entirely caffeine-free, it does have significantly reduced caffeine content. On average, an 8-ounce cup of decaf coffee contains approximately 2 to 5 milligrams of caffeine. However, it’s worth noting that the actual caffeine levels may vary depending on the specific decaffeination process used.
- Cold brew coffee: Cold brew coffee is prepared by steeping coffee grounds in cold water over an extended period, typically ranging from 12 to 24 hours. Cold brew coffee generally has a higher caffeine content compared to regular brewed coffee. An average 8-ounce cup of cold brew coffee can contain anywhere between 100 to 200 milligrams of caffeine, depending on the brewing method and the coffee-to-water ratio used.
Please bear in mind that these values are only approximations and can vary. Furthermore, different coffee brands and brewing techniques may yield slightly different caffeine levels.
