Ginger Bug Recipe Fermented Starter for Homemade Sodas A ginger bug is a naturally fermented starter culture that can be used to make homemade sodas with beneficial probiotics Ingredients 2 cups n o n -chlorinated water 2 tbsp grated fresh ginger organic preferred with skin on 2 tbsp cane sugar organic preferred Additional sugar and ginger for daily feeding Instructions Start the Bug In a clean glass jar combine 2 cups of n o n -chlorinated water 2 tbsp grated ginger and 2 tbsp sugar Stir well to dissolve the sugar Cover with a breathable cloth or coffee filter and secure with a rubber band 2 Daily Feeding Each day for about 5 -7 days add 1 tbsp grated ginger and 1 tbsp sugar stirring well each time 3 Signs of Fermentation After a few days you should see bubbles forming and it will smell slightly yeasty and gingery