1) Depending on the brand of tea used, the number of tea bags needed for this recipe will be somewhere between 10 and 12. It is best to weigh the tea in either case.
2) This step of the fermentation process is where carbonation takes place. The longer the second fermentation is, the fizzier the kombucha will be.
3) After the second fermentation, a small SCOBY will form in the bottles. This is completely normal since the fermentation process is ongoing. Simply strain your kombucha before serving.