Decaffeinated Black Teaįor anyone who wishes to restrict caffeine consumption significantly, it would be a good idea to look into decaffeinated black tea options. In contrast, if you wait for 10-15 minutes until the water cools, you will be able to brew the tea with lower levels of caffeine. In other words if you brew your tea in boiling water straightaway, then you can maximize the caffeine content. 3) A Higher Temperature Releases More CaffeineĬaffeine has lower levels of solubility in colder water ( 8).Īs a result, steeping black tea in boiling water will release more caffeine than brewing it in room temperature water will ( 9, 10).
The reason for this is that a longer brewing time releases more tannins, which can impart a bitter flavor to the tea. However, it is better to limit the steeping time to a maximum of five minutes. On the other hand, this longer steeping time is better for people who are seeking a higher amount of caffeine. The way we brew the tea also matters, and a longer brewing time leads to a stronger cup of tea.įor a perfect-tasting black tea, a brewing time of around four minutes is about right, which will be on the higher side regarding its caffeine content.įor individuals who wish to consume less caffeine, a steeping time of one minute or less can significantly reduce the caffeine content.Īs shown in the average amount, a steeping time of five minutes almost doubles the amount of caffeine as a cup of tea steeped for one minute. Some additional brands have provided information on the caffeine content of their tea Tetley’s black tea contains “40 to 50 mg” and PG Tips contains 40 mg per average cup ( 4, 5).Īs you can see from the table above, it isn’t merely a matter of how much caffeine is in one teabag of black tea. The data comes from a recent study that looked into the caffeine content of brewed teas ( 3). The following table shows the caffeine content of some globally popular black tea brands.Įach value is for a standard 8 oz (240 ml) cup of tea, and it depends on the “steep time,” which refers to the amount of time the tea is allowed to brew in the water. Caffeine Content of Popular Black Tea Brands On the positive side, research data is available that shows the total caffeine in some of the most famous tea brands. Unfortunately, it is rare to find any mention of the caffeine content on tea packaging labels, so it can be hard to know precisely how much the tea contains. However, this amount can vary depending on the variety of black tea and the process we use to make it. Generally speaking, the average cup of brewed black tea contains around 47 mg of caffeine per 8 oz (240 ml) cup ( 1, 2).
#BLACK TEA CAFFEINE FULL#
However, it is relatively high in caffeine compared to other types of tea.įor people who are sensitive to caffeine or just for those who are trying to cut down, this article will provide a full guide to how much caffeine is in a cup of black tea.Īs part of this, we will examine black tea’s average caffeine content per cup, and the amount that popular black tea brands contain.Īdditionally, we will examine the various brewing factors which affect the total caffeine concentration in the final cup of tea. Black tea is a delicious and healthy drink, and it has a range of health benefits.
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