01 - In a clean glass jar, dissolve cane sugar in filtered water. Add water kefir grains or ginger bug and fresh lemon juice. Stir gently with a non-metallic spoon.
02 - Cover the jar with a breathable cloth or coffee filter secured with a rubber band. Let ferment at room temperature (68–77°F) for 24 to 48 hours, until slightly fizzy and tangy.
03 - Strain out the kefir grains or ginger bug and discard or reserve for future use.
04 - In a pitcher, combine the fermented soda with orange juice, lime juice, and mint leaves. Stir gently.
05 - Fill glasses with ice cubes, pour the prepared mocktail over, and garnish each glass with a thin slice of orange and extra mint leaves if desired.
06 - Serve immediately to maintain optimal fizz and freshness.