Thanks for that. At the moment I only drink the commercial stuff, which is labelled non-alcoholic, but I’ll bear in mind if making my own.I'm a wee bit wary about Kombucha. SWMBO brews a tea-based version, using a scoby provided by a friend, and it definitely has alcohol present. It's very low, probably less than 1%, but I can still taste it, and therefore it's on my verboten list . . . just in case it sets me off again.