Fill a quart mason jar with 1 1/2 cups filtered water.  Add 2 tsp ginger powder (or grated, fresh organic ginger) and 2 tsp organic white sugar and mix well. Cover and leave on the counter at room temperature for 24 hours.

After 24 hours, remove the lid and add an additional 2 tsp ginger powder and 2 tsp white sugar and mix again. Cover and let sit on the counter for 24 more hours.

Repeat for a minimum of 3 days and for a maximum of 7 days until small bubbles begin to form on the top indicating the probiotic culture has reached a critical mass and taken hold. Once the bubbles appear, the liquid excluding the sediment on the bottom of the jar can be used as a starter for homemade sodas. Refrigerate and feed the culture 2 tsp ginger powder and 2 tsp sugar once a week if not used within a few days.

If no bubbles appear by the seventh day, toss and start again.