Homemade Ginger Beer

Directions

1. 1
   Use a funnel to pour the sugar and yeast into a swing-top 1 liter glass bottle.
2. 2
   Mix the freshly grated ginger with the lemon juice in a measuring cup with a spout. Transfer the ginger and lemon juice to the bottle. Rinse out the measuring cup with some of the cold spring or filtered water and pour that into the bottle. Fill the bottle about half way with more cold water.
3. 3
   Seal the bottle and shake well to mix all the ingredients together. You want to make sure that all the sugar at the bottom has been mixed into the solution. Carefully open the bottle and add more water until there is only an inch of air left at the top. Seal the bottle and shake again.
4. 4
   Leave the bottle in a warm place out of direct sunlight for about 2 days and then move to the refrigerator to stop the fermentation. Sometimes you can tell when it's ready because if you shake the bottle, you'll see bubbles form, but sometimes you don't, and it's still fizzy. If you really want to make sure the ginger beer is ready, double the recipe and fill up a 2 litter plastic soda bottle. Test the fermentation by squeezing the bottle; when it doesn't give anymore, it's done.
5. 5
   Pour over ice and enjoy!