After I logged off, I had a thought that the C.W.A. (country women's assoc.) would probably have something.
[We used to call it a ginger beer bug btw. lol Maybe just a FNQ term. ]
Here is a post from bestrecipes from an old C.W.A. cookbook.
http://www.bestrecipes.com.au/forums...71&postcount=3
No yeast in that.
Koala, be really careful where you store it once bottled.
I recall in Cairns the bottles used to be stored under our old Queenslander which was probably the coolest place but they still used to explode from time to time. You probably have a good temperature right now in Tassie for doing it before it gets too hot. I liked the idea of using an esky that I read on one post somewhere. If one explodes it's contained.