One of my large containers of kombucha had grown such a thick scoby (probably close to 3″ thick!) that I decided to peel off the bottom layers and leave the nice clean top layers. The other reason is that the original bottom layer had some spots where the scoby growth had been inhibited by a competing organism-this did not continue through the top, so peeling off this layer made it like new again. I placed the layer of scoby on a plate for examination, and this was what I found looking back at me!
The entire scoby looked like this:
Not a very happy scoby, is it? They never look too pretty…but are rarely this expressive!
This image does clearly show three or four areas of inhibited growth, a good reason to peel away the affected layers. You should occasionally give your scoby a once-over; a quick physical exam. It should smell like kombucha and not have holes or discolorations other than the light to dark seen here. The bottom left shows two areas that are too dark-some other microoganism is trying to take root there! The scoby appears to have successfully prevented its further growth but peeling off the layer keeps things on the safe and less-unattractive side.
I continue to share scobys with local contacts, but run out of people and always have more scoby than I can give away. Maybe these could be made into some type of food! I have seen some recipes for how to eat them but have yet to try it. My kids are daring me…I will keep you posted!