(covers information from several alternate timelines)
Guinan introduces Worf to prune juice
Prune juice was a sweet Human beverage made from the puréed dried fruit of a plum tree. It was also used in creating a prune juice spritz.
alternate reality in 2255, the Shipyard Bar in Riverside, Iowa, on Earth, offered this juice as a special item on its menu. ( ) Star Trek
Klingon Worf was known to enjoy prune juice, which he proclaimed "a warrior's drink" when he was introduced to it by Guinan aboard the USS in Enterprise-D 2366. ( : " TNG ")
adoptive parents, Sergey and Helena Rozhenko, were surprised when Guinan told them Worf enjoyed the drink, as he had never shown an interest in Human foods and beverages with them. ( : " TNG ")
Worf often ordered chilled prune juice at
Quark's on Deep Space 9, as well as in the mess hall aboard the USS . ( Defiant : " DS9 ", " The Way of the Warrior ")
Worf often ordered an extra large prune juice. (
: " DS9 ", " To the Death ")
Let He Who Is Without Sin... Quark recounted an occasion that Worf toasted Ch'Pok with prune juice at Worf's hearing in 2372. ( : " DS9 ")
Rules of Engagement Jadzia Dax once told Worf that " for a "
Klingon who was raised by Humans, wears a Starfleet uniform, and drinks prune juice, you're pretty attached to 'tradition'.
While pining for
Grilka, Worf took solace in the drink. ( : " DS9 ")
Looking for par'Mach in All the Wrong Places
Doctor Bashir prescribed to Odo – who was, at the time, living in humanoid form – that he had to relax, Odo admitted, " And it helped.... That, and the prune juice." ( : " DS9 ")