Non-alcoholic Ginger Ale #1
10 L Batch Size
Zest of 2 limes and 1 lemon
2 Large Pieces of Ginger (Minced or Grated)
Juice of 2 limes and 1 lemon
3 cups of sugar
Begin by bringing 9 L of water to 68 C. Add zest and ginger to a bag or otherwise make sure you can remove/strain it later. Leave, covered, for a few hours. Remove ginger and zest, and add the sugar and juice. Bring to 90 C. Pour into sanitized keg, adding 1 teaspoon of potassium sorbate (sorbinian potasu). Cover, and put under CO2 pressure. Purge the headspace, and allow to cool before chilling and carbonating.
I use my hop strainer to make the infusion/tea. It works wonderfully.
I add the sorbate (granulated) without hydrating straight to the keg. The sorbate inhibits spoilage (fermentation). With sorbate, you can bottle it and store at room temperature for up to 6 months before you begin to detect spoilage. Any spoilage works slow, meaning you catch the sulfur production and increase in carbonation prior to any risk of explosion.
If put in a keg and kept cold, it should last much longer (if you don't drink it all).