Add ingredients except kombucha into a half-gallon-sized jar or large-mouthed bottle with a lid (either a swing top or one with a cap which can tighten.)
Top with kombucha.
Wait 2-3 days, then remove scraps from bottle. Move to refrigerator.
Serve chilled.
Recipe by Fermenters Club at https://fermentersclub.com/pineapple-ginger-kombucha/