Is well water safe to use to make Kombucha Tea?
Yes. It is usually safe if it’s boiled first–provided you live in an area that is well away from an industrial site that uses toxic chemicals. If you live in a heavy industrial area or farm area where they use toxic chemicals, the surrounding ground water could be polluted by heavy metals as well as herbicides and insecticides. These toxic compounds could find their way into the underground stream that feeds into your well, and poison the water. If you live in such an area, it would be wise to use municipal water or filter your well water before using it for drinking purposes.