Umm gazoz isn't fermented ... ?
They usually make it with fermented ingredients, including kombucha, now: "Briga made the drinks, embellishing them with herbs and applying his experience with fermentation and kombucha-making, and a vision was born. “Today I have over 200 fermented infusions and starters, from long pepper to vanilla, some months old and some years old,” he said. “Plus seasonal fruits, herbs, and spices.”"