Yes, earl gray black tea does contain caffeine.
An English breakfast tea typically contains around 30-50 milligrams of caffeine per 8-ounce cup.
No, fennel does not have caffeine in it, therefore the tea made from it has none. If however, fennel is added to black tea, then the black tea will add caffeine to the tea made from it.
Yes, yes it does.
Yes, the caffeine content in green tea is generally lower than that in black tea.
Yes you can but it's not advisable to drink too much. It's the caffeine in the tea that can cause a lower than normal birth weight. English breakfast tea has a greater amount of caffeine, than "normal" tea. Four cups of tea a day is a guideline, so for English, I'd suggest only two cups a day. Any doubts, see your doctor, he's better qualified for this sort of thing. See related link for more information.
Unless it specifically states "caffeine-free" on the label, YES. Chai tea is made with black tea as a base, with spices and flavourings added. Black tea has caffeine in it. Decaffeinated teas have some (not all) of the caffeine removed. There are herbal chai teas available that are made without black tea in them, so read the label carefully.
Unless it specifically states "caffeine-free" on the label, YES. Chai tea is made with black tea as a base, with spices and flavourings added. Black tea has caffeine in it. Decaffeinated teas have some (not all) of the caffeine removed. There are herbal chai teas available that are made without black tea in them, so read the label carefully.
Some common black tea flavors available in the market include Earl Grey, English Breakfast, Chai, and Darjeeling.
No. Green tea has caffeine, although it has less caffeine than "normal" black tea.
Yes it does. The Caffeine Content in English Breakfast Tea is 3.4% of Total Weight (which is a significant amount compared to other teas). The caffeine content in tea is about half to one third to that of coffee. This tea gives a good energy boost compared to coffee coffee. Caffeine does not increase your risk of heart disease. It temporarily increases your sympathetic tone (increased heart rate, mild increase in blood pressure) but certainly doesn't "harden" your arteries. The hardening of arteries, atherosclerosis, is a process that occurs over many years in response to elevated LDL cholesterol, chronically elevated blood pressure, and several other factors including smoking.
Yes it does. It is made of black tea and spearmint leaves. The black tea generally gives about 30-60 mg of caffeine in this tea. (You can double check on the bigelow website.)
It depends on the tea. Herbal teas generally are caffeine-free. Green tea is caffeine-free. Black teas (Pekoe, Earl Grey, etc.) *do* contain caffeine.