We bottled after 8 days in fermentation and flavored the big batch with 1/3 cup of tangerine juice (Evolution brand from Whole Foods) and 1/2 tbsp sugar. The plain we added just 1 tsp of sugar to since there was still some sweetness from the shorter fermentation. We’ll let the tangerine go 5 or 6 days in 2nd fermentation. We’ve been letting the plain go 16-20 days but for a few we’ve found that to be a bit much so we’re back to refrigerating the plain after 12-14 days in second fermentation.