All real tea contains caffeine unless the tea has been artificially decaffeinated. (The only exception to this rule is Japanese kokicha, made from stems of the tea plant. Its caffeine content is negligible.) Tea also contains a related chemical called theobromine, which has similar (slightly milder) effects on the body. The amount of caffeine in a cup of tea varies tremendously, depending on the variety of tea and the brewing time.

The caffeine content in tea averages about 1/3 the amount found in equal liquid quantities of coffee, about 28-44 mg of caffeine per cup. It is only a myth that green and white teas have less caffeine. The leaves contain the same amount of caffeine but you tend to brew green teas for a shorter period of time and this will lessen the amount of caffeine that ends up in the brew.

Yes. Total Control ? contains approximately 84 mg of caffeine per tablet, roughly equivalent to one cup of coffee or black tea.

Green tea naturally has approximately 15 to 50 mg of caffeine per cup. Coffee has 80-200 mg/cup. Black Tea has 40-90 mg/cup.

Tea has a wide range of caffeine depending upon the type of tea, plant varietal, and brewing style. Generally, green teas contain 5-20 milligrams, Oolong teas contain 35-45 milligrams, and Black teas have 45-60 milligrams of caffeine in an 8 oz. cup. By comparison, a typical cup of coffee has roughly 125-185 milligrams of caffeine.

Yes. Even decaffeinated tea has a very small amount of caffeine. Green tea has less caffeine than black or oolong tea. The amount of caffeine depends on how tea is brewed, how long it's brewed, what part of the tea plant the leaf/bud comes from and the size of the leaf when brewed. Tea bags usually have smaller leaves or pieces of leaves and result in more caffeine when brewed.

The 3 most important constituents are catechins (which include powerful antioxidant EGCG), theanine (which has a relaxing effect) and caffeine (which is stimulating). It is the interplay between these tea compounds that make green tea such an enlightening drinks for many.

Caffeine is sometimes called "theine" when it's in tea. This is probably due to an ancient misconception that the active constituent is different. Theophylline is present only in trace amounts. It is more diuretic, more toxic and less speedy. Caffeine 1,3,7-trimethylxanthine Theophylline 1,3-dimethylxanthine Theobromine 3,7-dimethylxanthine Coffee and tea contain caffeine and theophylline, respectively, which are methylated purine derivatives that inhibit cAMP phosphodiesterase.

No more than 0.4% caffeine remains in Triple Leaf Decaf Green Tea. That means one tea bag (2000 mg) of 100% decaffeinated green tea contains 8 mg or less of caffeine.

Caffeine is very bitter. Barq's Root Beer contains caffeine and the company says that it has "12.78mg per 6oz" and that they "add it as a flavouring agent for the sharp bitterness"

Chocolate contains caffeine and theobromine, between 0.3% (milk chocolate) and 0.7% (bittersweet), mainly in the form of caffein. Caffeine, theobromine, and theophylline (in tea) are chemical compounds with closely related structures and similar pharmacological properties. They are all members of the class of compounds known as methylxanthines. They occur in many common food plants, such as coffee, tea, cocoa, mate (a South American drink), and cola.

Black (orange pekoe) tea contains approximately 34 mg of caffeine per 6 oz cup of tea, about 1/3 to 1/2 that of a comparable size cup of coffee. Green tea has approximately 34 mg, while decaf black has a negligible amount of caffeine and green has no caffeine. Click here to view our caffeine meter. If the specialty tea is a flavoured black or green tea then yes, it would contain from 28 mg to 34 mg of caffeine.

Caffeine content of a cup of tea varies based upon total time steeped, the quality of the tea and even from crop year to crop year. Generally speaking, the following numbers represent averages to demonstrate the relationship between various teas and coffee per 8 oz. serving. Long Life uses a natural water process to decaffeinate our tea. Absolutely no chemicals, including CO2, are used on our tea.