ingredient information
Tea White Extract Decaffeinated
White tea (??) is the uncured and unoxidized tea leaf. Like green, oolong and black tea, white tea comes from the Camellia sinensis plant. Oolong and black teas are oxidized before curing. White tea often contains buds and young tea leaves, which have been found to contain higher levels of caffeine than older leaves, suggesting that the caffeine content of some white teas may be slightly higher than that of green teas.[1] White tea is a specialty of the Chinese province Fujian.[2] The leaves come from a number of varieties of tea cultivars. The most popular are Da Bai (Large White), Xiao Bai (Small White), Narcissus and Chaicha bushes. According to the different standards of picking and selection, white teas can be classified into a number of grades, further described in the varieties section. An extract is a substance made by extracting a part of a raw material, often by using a solvent such as ethanol or water. Extracts may be sold as tinctures or in powder form. The aromatic principles of many spices, nuts, herbs, fruits, etc., and some flowers, are marketed as extracts, among the best known of true extracts being almond, cinnamon, cloves, ginger, lemon, nutmeg, orange, peppermint, pistachio, rose, spearmint, vanilla, violet, and wintergreen. Decaffeination is the act of removing caffeine from coffee beans, mate, cocoa, tea leaves and other caffeine-containing materials. (While caffeine-free soft drinks are occasionally referred to as "decaffeinated," some are better termed "uncaffeinated": prepared via simply omitting caffeine from production.) In the case of coffee, various methods can be used. The process is usually performed on unroasted (green) beans, and starts with steaming of the beans. They are then rinsed with a solvent that contains as much of the chemical composition of coffee as possible without also containing the caffeine in a soluble form. The process is repeated anywhere from 8 to 12 times until it meets either the international standard of having removed 97% of the caffeine in the beans or the EU standard of having the beans 99.9% caffeine free by mass. Coffee contains over 400 chemicals important to the taste and aroma of the final drink; this makes it challenging to remove only caffeine while leaving the other chemicals at their original concentrations.[citation needed] Coffea arabica normally contains about half the caffeine of Coffea robusta. A Coffea arabica bean containing little caffeine was discovered in Ethiopia in 2004