This is the fun part of brewing your own kombucha! The flavor combination's are endless. I like to use The Flavor Bible: The Essential Guide to Culinary Creativity, Based on the Wisdom of America's Most Imaginative Chefs for inspiration. It is a great book!
You will have needed to brewed your kombucha with the SCOBY for 10 -30 days depending on how sweet or sour you want your drink to be.
Remove the SCOBY. (start a new batch with your SCOBY). Never flavor with the SCOBY as you will most likely damage it.
Now you can begin experimenting.
You can use fresh or frozen fruit, juice, herbs or spices to create your unique flavors. The basic preparation is always the same.
Place 1/2 cup of juice or 1/2 of a piece of fruit or 1/2 cup frozen fruit or 3-4 pieces of dried fruit in the bottom of a 1 QT Mason Jar
Add herbs or spices if you want
Pour 3 cups fermented kombucha over the fruit or juice, herbs and spices. Replace lid. Allow this to ferment an additional 2-3 days on your counter. This will flavor your tea and add effervescence.
After 3 days, place kombucha in the refrigerator. You may strain at this point if you like however, I leave it all there until I am ready to drink. I feel It adds more bubbles. I like to eat the fruit after it has been used to flavor the tea. It is great with yogurt or to add a little to your smoothie.
Some of my favorite flavors combination's are:
1/2 cup fresh persimmon juice with 1/2 stick cinnamon and 2 cloves, and 1/2 inch piece of ginger
1/2 of a pear diced with 1 cardamom pod that has been crushed and 1 star anise. If you want a more intense pear flavor use a 1/2 cup fresh pear juice.
1/2 of a mango, 2 cloves, 1/2 of a cinnamon stick
1 hibiscus tea bag, zest and fruit of a meyer lemon, 1 - 2 teaspoon fresh ginger juice. Remove tea bag after 10 minutes.
1/2 cup cherries, 1 Tablespoon cocoa nibs (remove after 2 days as they become bitter)
1/2 cup blueberries with 1/2 stick cinnamon and 1 teaspoon fresh ginger juice
1/2 cup Trader Joe's frozen mixed berries
1/2 cup strawberries