You CAN cover your Kombucha airtight

[Guest guest]

And if you live in a moldish place you probably should do just that

(to prevent mold forming)

I grew up seeing a few kombucha jars covered with cheese cloth around

my mom's kitchen. So when I started making my own I didn't even think

of covering with anything else. Untill a few months ago I actually

covered a jar with its original plastic lid. Guess what? It brew

perfect kombucha and produced a great baby, and again and again... all

while closed

Also, speaking of rules - you CAN use metal with kombucha. Again,

for the sake of experiment I am brewing 5th generation of babies in a

metal can. It is just fine.

I sent kombucha babies to hundreds of people and always included in my

istructions 'no metal' and 'cloth or paper top rules'. I have no idea

who came up with that stuff, but as I see it now it is just not true.