The rooibos, or “red bush,” plant is actually green, and the tea turns the signature red color when it is at the fermentation stage of processing.

The Green tea leaves are picked, withered, rolled and dried—they are not allowed to oxidize/ferment—which prevents the leaves from becoming black tea. Manual compression and agitation like squeezing and stirring accelerates brewing of the tea bag and therefore also the extraction of caffeine into the brew. However, as a result of the manufacturing process, Tetley tea bags do contain a very small amount of plastic to ensure the bags remain closed for you to enjoy your cup of tea.The moistened tea then comes into contact with ethyl acetate, which selectively absorbs caffeine and removes it from the tea. There are between 40 and 50 milligrams of caffeine in a typical eight-ounce cup of brewed black tea or green tea steeped for three to five minutes. However, Tetley® Classic Iced Tea Blend tea bags are specially blended not to cloud when refrigerated.

While we have taken care in preparing this summary and believe it to be accurate, it is not a substitute for reading the product packaging and label prior to use. Green and Black Tea are both derived from the same plant (Camellia Sinensis) and their leaves contain similar amounts of caffeine. S. manufacturers to use the term on their packaging as a descriptor of the tea, but that is not accurate, as the whole leaf would not fit into a tea bag.One of the ways in which we are fulfilling these responsibilities is through our collaboration with the Rainforest Alliance. Our iced teas are specially formulated for iced tea to give you the perfect combination of iced tea color, clarity and taste in every glass. While Classic Blend comes in square, string and tag tea bags, British Blend uses Tetley's unique round tea bag, which is made with premium Perflo paper. However, if you would like to, you can change your cookie settings at any time through your web browsers tools.