I have been playing around with some ideas for making non alcoholic ginger beer. I think the recipe still needs some tweaking but it is not too bad considering how cheap and easy it is to make, and you should have most of the ingredients already.
I just use old 1.25 or 2L soft drink bottles.
The recipe so far is:
Per liter
1 cup of sugar
Two desert spoons of powdered ginger
1/4-1/2 teaspoon of citric acid
Pinch of yeast. (I used 1/4 of a teaspoon in a 2L bottle and it was more than enough)
Method
Wash and sanitize your bottle and funnel. I just sanitize with hot water from the tap. Pour your sugar, ginger and citric acid into your bottle, fill about 1/3 with hot water from the tap, put the lid on and give it a good shake to dissolve the sugar. Fill with cold water up to about 2" below the top, you want the mixture in the bottle to be around 28-30oC. Sprinkle your yeast in and put the lid on loose, squeeze the bottle to get the air out, then shut the lid tight.
Sit it on the bench some where warm and give it a shake every now and then. Keep a close eye on it and when the bottle is firm, crack the cap to let the pressure out, depending on the ambient temp and how much yeast you added you may or may not have to do this.
After 24-48 strain the mixture through a muslin or cotton cloth. Put the liquid back in the bottle and top up with water until it is about an inch or a little less below the top. Sit it back on the bench and let it carbonate. After about 12h the bottle should be firm again. Chuck it in the fridge and when it is cold, it is ready to drink.
Obviously you can adjust the amounts of sugar, ginger and citric acid to suit your taste.
I am just trying a second generation and will update this when I have confirmed it will work and have tasted it. You can do a second gen by keeping what is left in the muslin cloth and adding half to your next batch with half the usual amount of ginger. ie. for a 2L bottle you would add half of the stuff from the old batch and 2 spoons of new ginger.
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