With the sudden cooled down weather (we went from days of 36 C now to days of 20 C), I've noticed a difference in my brewing. It's taking much longer. It used to be that every 12 hours my brew was ready (using approx 6 cups of water).

Yesterday I left the brew of 6 cups water (1 tbsp crystal) for 36 hours and it still wasn't quite sparkly tasting. I have strained the liquid from the crystals and capped it in a glass bottle for 6 hours and it is not fizzy.

I'm going to have to shoot for 48 hours of brewing 6 cups of water with the crystals to see what I get.