TO RETAIN, practice. To engage the services of an attorney or counsellor to manage a cause, at which time it is usual to give him a fee, called the retaining fee. The act by which the attorney is authorized to act in the case is called a retainer.
One explanation for the difference in the levels of catechins found in this study and others is the type of samples used. In comparative studies, leaves of Camellia sinensis 4 Discussion Table 1. Levels of catechins and caffeine in tea bags, extract, and ready-to-drink green tea.
According to Arbor TeasÂ® (1), any tea that says caffeine free is not made from true leaves of the camellia sinensis tea plant. Decaf teas will still have small amounts of caffeine in it because caffeine is naturally in the plant. Herbal teas like mint or chamomile tea will be caffeine free because they are not made from true tea leaves. The amount of caffeine in decaf tea will vary depending on the type of tea and decaffeination process.