The caffeine content in coffee varies depending on the type and brewing method. On average:
- A typical 8-ounce cup of brewed coffee contains about 95 mg of caffeine, but this can range from around 80 to 200 mg depending on factors such as coffee type, brewing strength, and cup size.
- A 12-ounce cup of brewed coffee typically contains between 113 to 247 mg of caffeine.
- Espresso, although more concentrated, has about 108 to 127 mg of caffeine per 2-ounce shot.
- Instant coffee generally has less caffeine, around 45 to 57 mg per 6-ounce cup.
- Decaffeinated coffee is not caffeine-free and may contain 2 to 15 mg per 8-ounce cup.
The caffeine content can also be influenced by the type of coffee bean; for instance, Robusta beans have roughly twice the caffeine content of Arabica beans. These values reflect typical ranges, with brewed coffee averaging around 95-150 mg per 8-ounce cup depending on preparation specifics.
