i love fermenting and kombucha especially!
go to yr local wine making store to get the proper fermenting bottles with flip tops, it should help with explosions. Burping your bottles in the second ferment should also help, but I donโt do this cause I find you loose a lot of carbonation. Stick it in the fridge for 2 days or so before opening to calm down the carbonation and you should be good.
Excellent flavour combinations include melon mint, strawberry mint, pinapple and hops! Play around with the tea you ferment with: elderflower tea makes a beautiful lychee-esque flavour. I want to try coffee kombucha next >:)
