OK, so following Greenerlife's advice, I've just gone ahead and bottled mine, bubbles or no bubbles!
Here are some pics of the process. It was all pretty easy, even with the hens insisting on helping!

Coincidentally, the hen at the back of this picture is actually called rhubarb, so I guess I should forgive their curiosity!
The recipe was really quick to follow - just add everything to the jar, and leave to mingle for four days, after which it looked like this.

As I said in my earlier post, I was a bit concerned that there was only minimal bubbling, but there was a little, so I'm hoping there is enough yeast to continue the fermentation a bit whilst its in the bottles - only time will tell!
The next stage was to strain the mixture through a clean cloth, ready for bottling. I didn't have the proper gear for doing this, so instead used our stainless steel vegetable steamer, which turned out to be absolutely perfect!

So there it is! At the moment it tastes very sweet, with bags of rhubarb flavour, and a slight hint of ginger beer. I've left the bottles to mature for a few weeks longer, and as long as they don't all explode, will report back on the results in due course!!
