(covers information from several alternate timelines)
Tea was a beverage which could be served hot or cold. It was made from plant leaves steeped in hot water. If served cold, the steeped water was then generally cooled down and poured over ice. Countless variations of tea were known on many planets.
Sub-Commander T'Pol was known to favor hot chamomile tea, although she occasionally drank mint tea as well. (ENT: "Fusion", "E²") In T'Pol's quarters in early 2154, she and Doctor Phlox once shared some tea together. (ENT: "Damage")
Unlike her shipmates, T'Pol rarely drank tea to accompany a meal during her early years aboard Enterprise NX-01. By 2155, though, she had begun to incorporate iced tea into her meals with Captain Archer. (ENT: "Babel One"
Captain Jean-Luc Picard was known for his fondness of Earl Grey tea, often ordering it from a replicator in his ready room with the phrase, "Tea, Earl Grey, hot." (Star Trek: The Next Generation) In an alternate timeline, Picard asked for Earl Grey tea from Data's maid using his usual phrase out of custom, to the amusement of Jessel. (TNG: "All Good Things...")
Before the surface of planet Rana IV was almost entirely destroyed by a Husnock warship, wild tea used to grow virtually everywhere on the planet. Rishon Uxbridge prepared tea from Rana IV for an away team from the USS Enterprise-D. (TNG: "The Survivors")
In an alternate timeline, Jake Sisko offered Melanie a tea in a house where he resided in Louisiana. Since she had walked through the rain to visit him, he suggested she could use a warm drink. (DS9: "The Visitor")
Captain Kathryn Janeway preferred coffee over tea. At some point after becoming an admiral in an alternate future, she began drinking tea instead, giving coffee up. She stated such to her past self after traveling back through time to change history, but after once again witnessing the dedication of Voyager's crew, she again drank coffee, as she had decided to revive a few of her old habits. (VOY: "Endgame")
- See Types of tea