Some of my kombuchas form a strange, greenish-grey powdery substance inside them. This looks like moss or dust, and appears embedded in the transparent matrices of strands inside the liquid, although many of them sediment to the bottom as well. This substance is exclusively inside the kombucha liquid, given that the rule of thumb is that "mold grows on top only", I assume it's not mold. I have also tasted this kombucha before and it tasted ok, I didn't get sick or otherwise impaired.
I tried washing the green strands off the SCOBY (they were hanging from the underside of the baby/daughter). But the next batch still developed the same growth.
Kombucha Kamp has a picture very similar to my issue. They claim it is not mold, but "tendrils of yeast".
If this is yeast, how come it's so dark in color? I thought yeast had a yellowish-white color. What are they? Are they dangerous? Are they bad? Can you stop them? Why don't all my kombuchas have it?
I can post a photo if anyone is interested, but it would look practically identical to Kombucha Kamp's photo.