It has only been 3 days since I started my kombucha so no changes to document yet. In the mean time I have researched how to go about adding juices to the drink when it's time. The juice should be added when the fermentation process is complete and the kombucha/juice mixture should go in the fridge once combined to prevent further fermentation (the cold temperature of the fridge ensures this). If the mixture did not go in the refrigerator at this point, the bacteria in the kombucha would begin to eat the sugars in the fruit juice. I am still not sure what flavor juice I will go with but I have time to decide (this process requires patience! geez). I will be back here updating soon on any changes in smell, taste, or sight that I notice!