Hi

Which tastes better kombucha or water keifer? I would like to start brewing to get our family some good probiotics. I had a bottle of gt brand plain kombucha which thought tastes really good but my son did not like it which I was surprised. I can add fruit juice to if needed . Are the probiotics better in either one?

Are the sugars completely used up ? I want to reduce the amount of sugar he intakes as my wife gets him soda and juices and I don't want him to be drinking that garbage

Thanks
Gary