Another explanation is that the young, tiny leaves already have all these minerals, antioxidants, while larger leaves have the same but not more, for a larger weight and volume. Caffeine in the plant is a natural protection system against predators, that would prefer the rich young leaves. The caffeine content is highest for the youngest leaves, followed by the young leaves and the mature leaves. Buds are of course in fact small young leaves. Usually they are a mixture of some or all of these. Teas can be made of different parts, that can consist of leaves, buds or stems. What part of the Tea plant is used for the tea? The longer you brew your tea the more of the caffeine in the tea leaves will come out. Quite clear, the more tea leaves you use the more caffeine will be in your tea, with the same temperature and brewing time. When you use hotter water, with the same amount of tea and for the same time more of the caffeine naturally present in the tea plant will dissolve in the water. But there is no evidence that this is the case, as higher oxidation teas do not have more caffeine content in general.įactors that do influence the caffeine content of tea Oxidation doesn’t increase caffeine contentĪnother common myth, probably related to the earlier one about black tea having more caffeine than green tea. In 2008 another similar study was published in the Journal of Analytical Toxicology and their results confirmed the same tendencies. And to get back into the tea myths the tea with the most caffeine in that particular study was White Tea! So to put it clearly you can’t predict the caffeine content by the tea type. The results were all over the place, the caffeine content in each tea type differs immensely, not showing any connection between caffeine content and tea type. In that selection 77 different teas were tested. Both are wrong.Ī study published in 2005 in the Journal of Food Science, talks about the exact contents of an amazing amount of food products. The most usual myths one encounters with this questions is that white tea does not contain caffeine and that black tea contains more caffeine than green tea. But this is a poor answer as teas differ so greatly from each other in caffeine content.ĭoes the type of tea (Green, white, black or oolong) matter? If you absolutely want an answer I would say about half that of coffee. This is really hard to say, it is different for each tea and there are a lot of factors you have to take into account. L-theane also causes the body to relax and calm. This explains why tea causes a much more steady boost in mental awareness without the crash often associated with coffee. Let me explain: L-theane interacts with caffeine which causes caffeine to be much slower in having an effect. The amino acid L-theane is the most important reason caffeine in tea is ‘different’ from caffeine in coffee. But this does not mean that the caffeine of coffee has the same effect on the human body as the caffeine of tea. Later on they discovered the chemical substance of caffeine or theine is the same, it is the same odorless, bitter, stimulating and easily solvable substance. Most other ‘teas’ that don’t come from the camelia sinensis, like for example rooibos, peppermint or cargula naturally don’t contain caffeine, the most famous exception being Yerba Mate.Ĭaffeine was first discovered in 1833 and was called theine at that time. Here I will only write about tea from the camelia sinensis variety. Hey there, in this post I’m going to try to tell you all I know about the caffeine content of tea and try to examine common knowledge and existing myths.
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