Behind the scenes
Gwethh was first mentioned in the Galactic Campaign Guide, a 2003 supplement for the Star Wars Roleplaying Game written by Peter M. Schweighofer and J.D. Wiker and published by Wizards of the Coast. The tea then appeared in the 2013 non-canon video game Star Wars: Tiny Death Star. In the game, the tea was depicted as a bubbling green liquid and could be produced on the "Ithorian Food" food level of a Death Star battlestation, costing two credits and taking twenty-five minutes to make without upgrades to the food level. Once the level was fully upgraded, the tea could be prepared in just eighteen minutes.
- Galactic Campaign Guide (First mentioned)