The explosives used by Jedi Padawan Ahsoka Tano during the Battle of Christophsis in 21 BBY were approximately the size of grapefruits.
Behind the scenesEdit
Grapefruits were mentioned in the junior novelization of the Star Wars: The Clone Wars film, written by Tracey West and released in 2008.
Grapes and fruit exist in the Star Wars universe, but no connection with either of these was established in West's work. In real life, grapefruits are a type of citrus fruit that grows on trees.