So its day 8 - I have a thin whitish/translucentish scoby disc that formed on the top of the brew. It smells vinegary but tastes pretty sweet still (good flavor though). I measured the PH and its around 3.0 (pretty much same as when I started it). I live in south Florida and home temp has been around 74-76 for the last 8 days. I did keep my scoby in the fridge for 2 weeks before I used it (didn't realize this wasn't the best idea). How come its still so sweet? Is it OK to drink anyway? should I just let it sit longer?