I make ginger wine all the time. It's fairly easy. I slice up about a thumb of fresh ginger and use 2.5 cups of sugar in 4L of filtered water. I pitch in a half a pack of EC1118 wine yeast and let it ferment for about 3weeks - 1 month. You can filter it or let it be. If you don't use an actual ginger beer plant (which can only tolerate up to 5% or so alcohol levels) and use the wine yeast instead, the alcohol content get ups to 10-14%, but you'll have to add some citric acid or lemon juice to taste. The ginger beer plant contains a bacteria that gives the ginger-beer a real bite and nice flavor without any additives, but the only draw back is the low alcohol tolerance. Here's a recipe using a plant [url]http://thegingerbeerplant.com/FAQs.html. I actually force carbonate my own (it's takes less trial and error) but I'm sure that charging it would work out fine. Have you tried it?