Love turmeric and ginger bugs. We even had success in Cambodia with galangal bugs and fingerroot bugs. One of the best experiments we ever did was inoculating some watermelon juice with our turmeric bug. It was the best watermelon soda ever created.
I've never heard of Jamu before, very interesting, need to study up on it.
OH gosh - delicious! Sounds even better than vodka in watermelon :P - I've never heard of fingerroot!
I love how different cultures have variations on the same thing - a turmeric drink!