Sandor Ellix Katz's book,
Wild Fermentation, is quite possibly one of my most favorite books. He takes such a relaxed approach to fermentation, which is quite a contrast to most of the brewing sites I read. Despite what Charlie Papazian says, it's really hard to just relax and stop worrying, even with the aid of a homebrew. If I have to pin down a moment when I decided to embark on this homebrewing adventure, it would be right after I read through this book for the first time. The guy is inspirational, what can I say. I've been meaning to try out his gingerbeer recipe for a while now, but have been too lazy to care for a starter. My imminent trip to the South Land on Christmas day spurred me to finally whip up a wild starter last week.
According to Katz's book, all you need to start is
2 teaspoons grated ginger (skin and all)
2 teaspoons sugar
1 cup of water
Stir together and leave in a warm spot, covered with some plastic wrap
Just like a sourdough starter (or a pet), you have to feed the thing every day with more ginger and sugar. I have a notoriously bad time with sourdough starters in this apartment. Something about the air just isn't friendly for the wee beasties to flourish. It took a while for this starter to start bubbling, and I think the activity I did get was a direct result of the yeast nutrient I added. I guess the lack of wild yeast in my apartment is ultimately good for my homebrews, but it's bad for any kind of wild fermentation process. The starter never looked particularly vigorous, so I really hope than when I crack open a ginger beer when I return, it will be carbonated.
When your starter is active, mix together:
2-6 inches grated ginger root
1.5 cups sugar
2 quarts water
Juice 2 lemons and reserve liquid.
Boil for 15 minutes. Cool and strain (if it's above 80 degrees, you risk killing the yeast in your starter). Add the juice of 2 lemons and the strained ginger bug. Add enough water to make 1 gallon of liquid. Bottle in sealable bottles (I used beer bottles and capped them, because I have the equipment to do so). Leave the bottles in a warm place to ferment for 2 weeks. Chill before opening and be prepared for carbonation!
I can only hope the last bit is true for me. Also, I was a little lax on sanitation with this brew. I mean, the starter sat out on top of my fridge for a week and barely showed signs of yeast habitation, let alone bacteria or mold. I think I should do a test with a bowl of weak wort and see how long that takes to become infected. The point of sanitation is to prevent infection with wild beasties, bacteria and mold. If they wouldn't go after my starter, I suspect the sanitation issue in the bottles might not be a big deal. (I'll give you all the gory details if this does go terribly wrong.)