Well, I am addicted to Kombucha... had no idea what it was until I scrolled down a little more on day on the forum... Went to the local whole foods, and got a bottle of GT's Unflavored... I LOVE IT! I have been drinking about 3 bottles a week and the cost is adding up fast. I am a home brewer, have a **** load of kegs, and thought "Why not make a massive batch and keg it?!" So my question to everyone is, do you HAVE to use glass to ferment? If Yes, can a glass carboy be used? I wouldnt think so as to harvest the SCOBY...