Line up 4 (25 ounce) bottles with flip top lids or other air tight bottles.
Smush ½ cup chopped pineapple into each 25 ounce bottle.
Using a funnel, pour freshly made green tea kombucha into each 25 ounce bottle leaving 1-2" head space.
Let bottles sit out (at 75° - 85°) 3-5 days, making sure to pop the lids each day (or a few times a day) to let out the pressure of the carbon dioxide. Taste each day to test its flavor and fizziness.
Refrigerate when you are happy with the amount of fizz and flavor.
Notes
If using frozen pineapple, allow it to thaw first.Use freshly made homemade kombucha that has not been refrigerated yet.You can add sweetener if desired. Strain out the pineapple, if desired.Refrigerate after the kombucha is done fermenting.