Does Ginger beer count? Than can be as ready as it ever will be after 2 days.
detail update: Inoculate made up solution of a small amount of ginger powder and sugar and bottle. Ready in two days. This is "real ginger beer" that uses a SCOBY based on Lactobacillus and Saccharomyces - not the yeast based variety. There is little alcohol produced and the gas carbonates the drink. The flavour is a tart/ginger lemonade. Very refreshing and a useful probiotic for digestive issues.