Are you serious? It's yeast. Champagne or red wine yeast, probably. Buy it at any homebrewing supply place. It costs 80 cents per pack. Use a balloon with a hole in it over the mouth of the container as an airlock. Wait until it stops bubbling. The longer you wait, the better it will taste. You only need one pack, because if you pour a few tablespoons of the finished hooch into a fresh container of juice the yeast will re-animate. Seriously, $.80 plus a balloon. Midwest Homebrewing Supply is but one of many places that sells yeast online.
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