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All teas made from Camellia Sinensis contain natural levels of caffeine. Caffeine is one of many self-defense chemicals that a tea uses to defend itself in this cruel world.
Pound for pound there is more caffeine in tea than coffee, but who drinks a pound of tea? So cup for cup, tea is much less. In fact, you have to drink 3 cups of tea to get the same amount of caffeine as a cup of coffee. Different parts of the tea leaves have different levels of caffeine.
The delicious but defenseless tea buds have the most, green teas have slightly less and black teas even less. Of course, you steep black tea longer than green tea, so it is a bit complicated. Still, it is correct to say that there is more caffeine in white tea than black tea.
The decaffeination process almost eliminates all of the caffeine. Caffeine-free "teas" are not teas at all but blends of herbs, flowers, spices and dried fruit. When there is only a single ingredient, such as our Peppermint, these are referred to as Tisanes. The larger flavour molecules, caffeine molecules, and antioxidants are left in the tea leaves, which is what maintains the taste and health benefits. Methylene Chloride - This is similar to the above method and is known to retain the flavour profile of the tea better.
However, Methylene Chloride has been linked to a few side effects, which has made several authorities to impose regulations on the levels used in the decaffeination of tea leaves. Although more popular in the decaffeination of coffee beans, this method can be used for extracting caffeine out of tea leaves as well.
The tea leaves are soaked in water, and passed through a carbon filter, which then attracts the caffeine molecules. Once passed, the water is added back to the leaves to develop the flavour.
However, it has been identified to give a watery taste and does not maintain the potency of regular tea. The health benefits provided by decaf tea is very similar to that of regular tea, however, not to the same effect of regular tea. This is because the decaffeination process extracts the flavonoids and antioxidants. However, a recent study shows that decaf tea only has Therefore, still aiding in good heart health, a healthy digestive system, reduced LDL bad cholesterol, and a good immune system overall.
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