How much caffeine is in black tea？

The caffeine content in black tea can vary depending on various factors such as the type of black tea and how it’s brewed. On average, an 8-ounce (237 ml) cup of brewed black tea contains around 26-72 mg of caffeine. This is less than the amount found in coffee, but it still provides a noticeable energy boost for many people.

It’s worth noting that caffeine content can also vary based on the brewing time, water temperature, and the quality of the tea leaves used. Some black tea blends, such as English Breakfast or Earl Grey, may also have higher caffeine content due to containing black tea blends with more caffeine. If you are concerned about caffeine intake, you can look for decaffeinated black teas, or adjust your brewing times and water temperature to lower the caffeine content in your tea.