Start your ginger bug/starter by combining 1 1/4 c filtered water, 1 TBSN grated ginger and 1 TBSN sugar in a jar. Stir well and cover with a cloth.
Every day for the next 4-5 days feed the bug another tablespoon of ginger and sugar.
When the bug is fizzy, smells yeasty, and has a fine sediment layer of white on the bottom of the jar it is time to make the ginger beer.
Cut a large piece of ginger into small pieces and boil with 3 cups of water for 5 minutes, then let simmer for 20 minutes. Let sit until completely cool then strain out the ginger pieces.
Next put 1 cup sugar and 7 cups filtered water into the ginger water you just made. Stir it really well.
Strain your ginger bug and put all the liquid into your ginger water/sugar mix. Stir well.
Pour into clean bottles and let sit. Each day I open the bottles to release the carbon dioxide. After 2-3 days the bottles can go in the fridge.