GUTsy Captain Kombucha Passion Fruit is the passion fruit expression in the brand's main flavoured kombucha range, produced in western Portugal using a 40-day fermentation process to give the SCOBY culture time to fully develop. Despite retaining live cultures, the finished drink is shelf-stable and does not require refrigeration until opened. The brand describes the character of this expression as sweet and tart, pairing the natural intensity of passion fruit with the underlying acidity of kombucha fermentation.